It's clear to me when watching this video that much of Dr. Laitman's explanations was cut for the sake of time, but I for one would not mind watching a full length version. His presentation is very entertaining and informative.
Dr. Laitman was my anatomy teacher in medical school!! The man is a legend who cares as deeply for his students as he does for the human body, always thought he deserved a bigger audience!
I could listen to him talk all day. For one, I love a good borough accent-it reminds me of yesteryear. And for two, he is probably the most charismatic doctor-scientist I’ve ever seen!
@@WiseandVeganwow. Pathetic attempt to hype your fave documentary. There is no truth conspiracy surrounding vestigial anatomy except the ever lasting movement of Creationists against evolution. It's great that you woke up to mind- body awareness and attunement, but stay off Dr jL's and WIRED's coat tails you baiting bull shover.
I was born with flat feet and ever since I can remember - about 5 years old or so - walking for periods of time over 20 minutes would hurt my feet badly, and running was a no go unless it was done in extremely short bursts. Even after walking you could feel the foot pain for a long period of time, even if you're sitting down. Eventually I underwent the Evan's Procedure, which adds bone graphs to create an arch in my foot. After both feet were operated on and about 2 years of total recovery, my feet are almost back to normal. Sometimes weird foot cramps occur, and running or walking up stairs for excessive periods of time can hurt. Nonetheless, I'm very thankful that such a surgery exists, and I am much more mobile. Don't take your arch for granted!
I used to have special shoes in hopes to get an arch when I was little, but it just got so expensive! It also didn't help that school had us use formal black shoes and my special ones didn't cut it
This is not just a Dr. explaining this to us, but this gentleman is a natural born teacher, with the special nuances to draw the attention of his audience.
I have flat feet, and unfortunately passed it on to all four of my children. As far as we’ve been able to determine, no one else in my immediate family, or immediate ancestry, had or has flat feet. It’s very inconvenient and has resulted, so far, in my having three surgeries to one of my feet. All of my children have to use prescription orthoses. It never occurred to me to start trying to walk on all fours. If only I knew this before.
@@popcornbutter6820 really? Ive got a bunch of yeezys and ultraboosts and theyre lovely for my feet. The ultraboost 3.0 are noticeably worse than the 4.0 and newer which were significantly improved
I love the way he speaks! He is very clear and easy to understand and keep up with, even when I'm not fully paying attention I still got what he's saying. I like how he uses different pacing/emphasis to clarify his statements.
bro it makes so much sense now, it always gets super uncomfortable standing for long periods of time with flat feet. People r always asking why it bothers me and I had no idea until now lol.
The exhaustion is better than the pain. I trained myself to flex the arches when standing. And i’m skinny… less weight equals less expense of energy to contract the muscles. If the pain/exhaustion impacts your life, and your BMI is high, i’d suggest working on weight loss.
Could try shoe socks(or sandles) for short periods of time. Many people have flat feet due to lack of using the arches (instead of genetics) so the muscles simply atrophy. I started doing it because the mucles in my feet were so weak that my toes could slip out of their joints and it's extremly painful. Rarely happens now, and it's only been about 4 months. (ligaments take longer to get strong).
As a flat footed person I remember growing up thinking how much I hated hiking and walking around all day. People use say I was so lazy because I got tired with my feet killing me. It was even worse growing up because I didn't have special shoes that cushion and people didn't know I had flat feet. Its funny because as an adults its very easy to find shoe design just for this particular issue.
I too have flat feet….but never got tired of walking…. But now I have been using prescribed arches in shoe soles (since like 4th grade) and it makes walking so much easier….like I can lift my feet up more comfortably. Though one problem I have faced A LOT is that my ankles twist so fast when I walk barefoot….I am guaranteed to have a twisted ankle at least once a month…sometimes not so bad but sometimes I cannot walk straight for a week…….also it’s embarrassing to tell people you have flat feet. Also to be called “medically unfit” for like admissions in defence or that sort of things…its weird and like you got no one to blame,,,,,but still I was happy my papa put much effort into my feet as a kid…he still does:)
prescribed arches will make your issue worse in the long run, that’s why you can’t even walk barefoot without twisting them. the supports are making all the muscles involved in naturally forming your arches are atrophying, slowly becoming so weak that you can’t even walk in the most natural state of your body; barefoot. you should be looking into minimalist shoes, flat as possible and a wide toe box at the front. slowly rehabilitate the muscles in your ankles and over time you will slowly strengthen your feet and restore them ❤
@@BreeMorenoMendozabrybry so I will be 19 soon and am wearing prescribed arches since I was 9….so like a decade. And you’re saying that my issues are getting worse I don’t get it??? I prefer a little heel than footwear that’s completely flat…I won’t say that my feet muscles are weak compared to other people bec I played a little bit of sports even barefoot and it was fine
Also prescribed arches are heaven sent….I feel so much better when my shoes have arches. Rest assured I have no problem wearing sandals or bellies…that do not have arches
@@nish888try doing calf raises, I had this same issue only when using any type of insert or high heeled shoe. After doing calf raises during a lifting challenge I noticed my right ankle couldn't handle as much weight as my left, my calf could but not my ankle. I started at 5 lbs, and after waiting for my joint to get stronger I was able to move up in weight every other calf raise day. It was very surprising to learn about. I've had flat feet my whole life. Plagued by plantar fasciitis with every insert. I developed sever heel pain after wearing custom orthotics for a year, then turned into plantar fasciitis, hurt even more every tkme I put the insert in. I started actually walking around my house barefoot. Barefoot for 20 minutes, roll ice for 10 and so on. No more pain, and no more inserts.
As a Doctor, I’ve always found it a little unnerving how easily we label a body part as “useless”. It’s a very strong term that makes people believe it’s a fact when in reality, it may just mean “not enough research”. Imagine how many perfectly functioning appendix’s have been removed preemptively under the guise of it being a useless body part.
I always thought this about wisdom teeth. Mine have never bothered me, yet dentist are constantly trying to make appointments for me to have them out. I have to speak up and say "hey! I don't want them out" A dentist actually told me I might as well get them out now so they don't cause problems later. Well if I went by that logic, take all of my teeth. 😅
The thing about appendicitis is that it is a very tricky problem. It can many times give out false positives and many times there are appendices removed by mistake But the problems that an unreasonably removed appendix creates is far far less than a burst appendix. Thats why doctors don't take risks at appendix and usually they remove it if they suspect there is a problem with it. In fact they even say there is no doctor who will diagnose appendicitis every single time, and if they do they have most likely missed an appendicitis.
@@gordatados bro, all your other teeth didn't come up sideway like that though. normal teeth are just, a teeth. brush it 2-3 times a day, go to the dentist appointment every 6 month to clean it up and you get them great for your whole life. I got all 4 of mine removed before it become painfully large and hard to remove.
For sure, nothing God has created is "useless". If tens of thousands of "body parts" has already been found function for, one should only be way too much careful before saying "useless"!
The doctor explained it soo well. I've been trying to find a video on this topic, and this is by far the best as he explain's it in an understandable way without going into too much depth.
I like this Doctor, he is the kind of knowledgeable person that has the knack for making probably complex portions of medical knowledge sound simple. Would live to see more of him! 😊
@@shadygaming6523 It wasn't many years ago, but the time was going to forcely serve it in the military wasn't anymore, but I got dismissed by anyway. But I sill los almost a week on college.
I have flat feet, and growing up I had to go to several doctors to understand the issue. My parents were more concerned than I was, and doctors said that somehow I adapted to the foot structure to walk more comfortably. The doctors said they could do a surgery, but they recommended I wait until it started to become a real hinderance in my life. I still don't feel I need the surgery, even after I ran cross country and track in high school. Still, I prefer swimming laps (I was on swim team) over running laps anyday.
I have high arches and it's a real pain. Very hard to find the perfect fitting soles so that it doesnt feel like my foot is doing the splits on flat surfaces. Even inside I wear slippers
@@sshelgetit’s bad for some of us. I can’t comfortably play soccer for more than 30 min a day or the lower muscle on my shins and tendon muscle flare up in pain
High arches are not a good thing either. I envy people with normal arches haha, I can't stand for long periods of time without my special shoe inserts. Ya gotta have that support even if you have high arches, without it, your feet can flatten.
I just wanted to share a little fact! Humans and chimpanzees actually have comparable amounts of hair follicles, but the hair on our body is much more fine than compared to that of a chimp, and it makes us seem like we have "less hair". We do have less by volume, but perhaps not by individually counting them. Whether or not we have more or less hair than a chimpanzee really depends on how you ask the question.
and if anyone wants to argue that the barely visible hair serves no purpose, know that our sense of touch is most prominent in our fingers, feet and face (where many nerve endings are), not so much across the body. If a hair, that protrudes the skin, gets bend however, that is very detectible by our sense of touch, which means you'll mostly notice a bug crawling up your leg or down you neck.
the ear thing... i can move my ears and I DO move my ears in reaction to sound. almost as a "maybe ill hear it better if i do this". sometimes i do it and i feel like a dog reacting to a sound lol
@@pvic6959 I recently had an ear infection in my left ear (horrible btw) that eventually slightly spread to my right ear. Because of the pain in my right ear, my brain discovered how to move the muscle and now, at 35 can move my right ear for the first time. Left is still paralyzed though 😂
The moving ear thing!! I can manually control it, but I definitely noticed throughout the years of landscaping and welding, that certain noises make my neck tense up and pull my ears back a LOT, and it helps deflect the sound, rather than funnel it in.
SAME! I notice I can be really expressive with my ears and move them quite a lot. I can usually pick out people who can do it too - if their ears move when they smile they can usually move just their ears if they try
Another cool thing about body hair is that some spots dense in hair also functionally lubricate the area and prevent chafing! People who shave cleanly often may notice chafing under their armpits and around their groin because of the high joint movement at those points.
@ Well children don’t really produced a lot of sweat in those places until puberty, and sweat is a huge contributor to chafing since it makes skin want to stick other skin while moving. Also well fitting clothing can help mitigate chafing, but for physical activities that you might not be wearing clothing (wink wink, not for children) pubic hair definitely helps with chafing.
Man there were multiple times in this video where I was intrigued and waiting for Dr. Jeffrey to expand on what he just said but then it abruptly cut to the next part.
My favorite vestigial muscles are the ones in the wrist that a subset of the population has - they apparently used to be used for gripping and swinging. I have these, and didn’t realize that they weren’t ubiquitous until very late in life. In high school art class, there was a project about drawing hands, and I remember being surprised that so many people just left out the muscles in the wrist and drew themselves with flat wrists. Imagine my surprise when I found out that most people _have_ flat wrists!
@@12thDecember Yeah, I looked it up after I made this comment and realized my mistake :/ I wonder how that number might change in the future - if it’ll get higher or lower or stay about the same
I remember hearing about the 3rd eyelid years ago, & I’m still kinda mad we lost. And some ethnicities can have wisdom teeth without any issue. I remember watching a dentistry video saying that indigenous South Americans (Bolivia & Peru) as well as West African & Black people with little to no European ancestry (like Haitians) usually don’t need wisdom teethed pulled because the high cheekbones & wider jawline as well as never needing braces. I’m 1/2 Bolivian & my wisdom teeth grew in normally but I decided to take them all out when I got a cavity in one of them & my dentist asked if I wanted to pull out the rest. It was my 1st & only cavity & I never needed braces
I don't know what it is worth but I saw a video that said also that because human have been mostly eating soft food they don't have to chew as much and it creates atrophy in the jaw. Chewing a lot especially growing up might grow muscles and improve jaw size, allowing for the wisdom teeth to develop better. I'm going to experiment with my kids when I have them
@@octave38 ive also heard that the way people position their tongues is different and has a large impact on the development of the jaw. basically, youre supposed to rest your tongue so your jaw is closed and touching the roof of your mouth, and breathing only through your nose
@@james__anna_burns4885 I do this ( called mewing ) and have been doing this for as long as I can remember , no one told me about it and I thought it was normal. Its not really gave me a strong jaw, chin or anything ( which is what its supposed to do ). As long as you are not a mouth breather I really don't think that it matters all that much. The comparisons that you see for mewing are either children that are now adults or someone really exaggerating, different lighting etc. There is literally no scientific evidence to prove it helping anything at all.
This was an amazing video, thank you WIRED. Please bring back Dr. Laitman for more videos, he was exceptionally clear in his reasonings but also hilarious and a joy to watch.
As an immunologist, the moment the appendix was introduced I was ready to come to the comments to correct you, as I thought you were going to say it is useless,...and then you highlighted and emphasized that it IS actually useful. THANK YOU
I have the "wiggly ear" muscle and I have a lot of fun with it, I also notice that when I hear a new sound in the ambient (like a car passing by or a new person joining the room unexpectedly), these muscles kind of "point" in the direction of the sound, together with my head of course.
That appendix section makes SO much sense, i lost mine when i was a child and have been plagued by digestive issues ever since, resulting in 9 operations, 3 life saving, the loss of many organs and now a life full of pain! If only we had known this 30yrs ago 😢
@@mrkiky I'm not an expert but i know you can live with just one kidney, one lung, possibly even without a heart by using an artificial one, which is basically a pump that's meant to keep you alive while waiting for a transplant
In my case, I noticed a few years ago that when something happens around me, like a strange noise, I automatically raise my eyebrows, widen my eyes and tense my auricular muscles. The difference in hearing between relaxed and tense is barely noticeable, but is there. Is like you can hear more clearly things that sound acute and are far away.
I'm the same, when I hear a loud sudden noise, I tense this muscle and move my ears back, I honestly can't really tell the difference but it's almost instinctual to try and limit the noise which is super interesting
I just recently watched a video elsewhere that contradicted the idea that flat feet are primarily genetically inherited. It mentioned that Asian, Indian, and African pediatricians reported very few cases of flat feet, especially compared to American and European doctors. Babies feet are basically all flat and arches develop through childhood. The studies suggest that children who go barefoot more often in early childhood are unlikely to have flat feet.
that still sounds genetic, if it's regional like that. did they somehow prove that european genetics are not the cause of more europeans having flat feet?
Not really, it more suggests cultural differences. Anyways, while I couldn't find the video I watched, here's a link to a study that also suggests that whether or not children wear shoes often is a better indicator of flat footedness. pubmed.ncbi.nlm.nih.gov/1624509/
@@Fr00steeno it doesn’t. It implies environmental differences. If you took some of those same people and placed them into Europe and America and still had the same results then you’d have genetic evidence. As you have changed their environment without seeing a change in outcome.
I understand Wired didn't mean anything by it, but the editor needs to chill out on cutting him up so much. "Even in many of the monkeys" *cut* "Our ancestors" *cut* "Ears are able to move" *cut* "a bit." I'm sure your editor doesn't know this, but monkeys are not our ancestors. Monkeys and humans share a common ancestor.
Not only high heels, but also modern shoes have heel drop and hard or cushioned shoes which deform our feet and make them lazy, hence our muscles never fully develop. The only things that do develop are flat feet, weak feet, bunions and hammer toes. The solution? Wearing no shoes or ‘barefoot shoes’.
I think it’s worth noting that many of these are vestigial organs - not necessarily “useless.” As the doctor explains, they all provide some insight into our history and function and shouldn’t be negated as irrelevant or removable.
As a general rule, providing insight into the history, shouldn't be a factor when it come to considering something in our body part irrelevant or removable. It is not a museum it is a human body.
@@tamilselvan0x0 if it provides knowledge and insight on our history it's definitely not irelevant, in fact it very much is relevant. I do agree with the removable part tho.
@@tamilselvan0x0 even if you don't care about insight into our history, the example with the appendix originally being thought to be useless but now realizing that it does actually have a use is a good enough reason to not consider organs irrelevant. they could still have a function that we just haven't realized yet. as for removing organs it depends on the situation. legs aren't useless but people can still be amputated if required. it's on a case-by-case basis deciding whether the benefits outweigh the risks
Well you know, they're are so many "Vestigial" Organs that proved to be useful over the years. It's getting to the point that it's really not making sense when you see an organ you don't understand, that it must be some evilutionary leftover. Just beacause you don't see a reason doesn't mean it doesn't exist. We've already learned this with the apendix and the the tonsil, as well, actually. In fact, there's a few things he says are vestigial in this vidio have been proven to have a use in recent years, such as the coxyse. (It's conected to important muscles and nerves.) And I think more of these organs will prove to be important as we learn more. And the male nipple explination is kind of ridiculous he must be mistaken.
These are all examples of devolution, which makes sense under the fallen worldview. Evolution needs to find examples of organs increasing in complexity, not decreasing.
@@DUNC8888high complexity means more points of failure and more energy required to operate, if you can make something more simple with the same function that's evolving not devolving.
The flat feet one really validated my experience of being easily tired when walking long distances. While I know being overweight contributes a lot, I now understand that that weight also has been putting so much pressure on my flat feet which in itself is also not normal even if the person’s normal sized!
@@shrutibharti_sb im the only one. As a kid my parents often got me cheap shoes and I kept on having feet injuries because of it Now that I'm grown I just get decent quality shoes, I won't be growing out of them anyways. Never had any issues again. Also had ingrowing toenails as a kid, that also resolved with better shoes. When im on bare feet, the whole thing touches the ground 😂
Wow ! Fellow flat footer here😂 I too have the problem of ingrown toe nails , one solution that worked out for me was letting the nail grow and cutting it straight instead of cutting it deep while tracing the natural curve of nail. I hope that makes sense😅
@@playingindies6730 I have good arches in my feet and get ingrown toenails semi-regularly if I cut them too short. I've heard being prone to ingrown toenails/hair is also a genetic thing.
On the last point, I ditched high heels during Covid & only wore a comfortable medium height pair with wider tips twice in the past 4.5 years. I noticed that all the bones, muscles & tendons in my feet adjusted. I now take a lot of care when choosing footware to make sure it's comfortable & supportive.
Give me more Dr Laitman, I love this guy. He's so passionate about his field and is clearly very knowledgeable, qnd his joy is infectious and makes me want to learn more.
6:47 appendix is also a “storage” for white blood cells (very rich in MALT complexes). One of the reasons why kids can get appendicitis weeks after a stomach viral infection; the lymphatics swell up, blocks drainage in the appendix, and bacteria can overgrow there causing appendicitis.
This doctor is incredible at explanation! Good analogies, and a good mix of complexity and simplicity. I do wish the edits were a little less fast paced. He’s clearly entertaining enough to not need the fast edits!
As someone born with arched feet but who developed flat feet over time, treasure your arches! Not having them is painful and expensive (in the USA, anyway)
@@koray6261 If you don't use the muscles in your feet enough, then your muscles will weaken and your arches can collapse, just like any other muscles in your body. Modern shoes don't allow our feet to move naturally, it's like wearing casts on our feet. Barefoot shoes are thin, flexible, and are foot shaped so our toes have room to move. By wearing shoes like these, we can naturally regain strength in our feet, which can also take away the pain in our joints which is caused by standing, walking, and running incorrectly because of our shoes.
@@MichaelSheaAudio oddly, the collapsed arches started when I was a kid and went everywhere barefoot anyway. My younger sister has arches so high she needs specialty shoes to support them. We always say she stole my arches!
I remember comparing my feet to a friend's once because our wet footprints looked nothing alike, and I never actually noticed how much they can vary. He had flat feet with smaller pinky toes, while I have arched soles with longer toes. I'm guessing certain parts of the body have more variations going on? Because our hands and such didn't look nearly as different
There are 4 kinds of human feet: Roman, Celtic, Greek and Egyptian and there's a fascinating youtube video about it somewhere. (I have Greek feet, my mom has 1 Roman and 1 Celtic lol)
@@rachelraccoon5565 there are actually more. It's indeed a complete spectrum of variations that can manifest randomly combined in any individual. That thing of the four shapes is like horoscope, or phrenology. Just RUclips B-Tier material.
@@rachelraccoon5565 do you think that aboriginal people in Melanesia have, for instance, a 'Roman' or 'Egyptian' foot shape? Or a Greek one? Or a Celtic? I thought so.
@@fL0p "I thought so"? Wtf Like you got me or something? lol Good job flop, you got me. Clearly I know nothing about aboriginal feet in Melanesia and I should therefore go kill myself. lol
I find the human body to be super interesting, it's really fun to think about all the ways we're connected to our ancestors (including distant relatives like fish) and all the puzzle pieces we've yet to discover and understand. It's great to see a video of an expert explaining things with just as much enthusiasm ❤ The connection between body hair & babies grabbing things on reflex is really cool *and* sweet :)
Body hair isn’t vestigial. Nowadays, rather than warmth, it’s used as an extension of our ‘feel’ sense. Hair vastly increases the surface area past our body that we can perceive. Some ways this is beneficial is we can recognize foreign items or insects approaching or on our bodies that may be harmful, and identify changes in air/temp. This is showcased in the goosebumps section: as a defense mechanism, our hairs are raised and their sensitivity is increased so they can reach out and perceive even farther, functioning as an early warning system. Under each hair has a nerve receptor tied to it under the skin for this reason. If hair were actually non-functional, the nerve receptors would not exist.
*videos not vids. I do not understand the concept of wanting to shorten a word that is already short enough as it is. I find it ridiculous. However, I do understand wanting to shorten long words.
3:45 I have this weird thing in my armpit that I never knew what it was. I'm now wondering if it's a nipple. I'll go check up with a doctor and update here if it was or not a nipple
I wish he could've added a section about gallbladders and their importance. Of course, they aren't useless and about a 4th of the worlds population has had theirs removed. I myself had mine removed due to complications of pain in the gallbladder area and other issues related that caused me to act quick and remove it. If he could've added a section on that, I would love the guy to pieces. Every part of our body is so fascinating and him explaining these parts with such energy and excitement makes me want to see him come back for a part 2 session with WIRED AutoComplete.
Gallbladder is important just as you say. Not just to store and concentrate bile, but also once removed, Many begin having Duodenal Gastric Reflux. Without the storage container that is the GB, Bile goes into the stomach a lot more. Even with the GB, I still see HIda scans with reflux into the stomach instead of the GI tract. I often wonder if overuse of Tums and other medicines can contribuite to this disorder?
Vestigial structures are carryovers that don't help us but don't hurt us enough to be selected against. A structure cannot just magically disappear once it becomes less useful. There are also structures that have been labeled as vestigial because their function wasn't yet understood, which is happening with the appendix. It now appears while the organ isn't completely necessary, it is beneficial. They often also still serve some purpose. For example, the remnants of the whale ischium still serves as an anchoring site for their reproductive organs. The wings of an ostrich are used in mating displays. For things like wisdom teeth and organs where losing them leaves us no worse for wear, it's often because selective pressure isn't acting on it hard enough or isn't acting on it at all in some cases and it's just up to genetic drift and random mutations to get the job done, and evolutionary change is slow.
I have relatively flat feet and running has been a no-go. I hurt both feet quite badly years ago where the arch would just burn and burn if I was walking for more than a few minutes. Something that's helped a lot, surprisingly, has been running with minimal shoes. Without the padding I'm forced to land more mid-foot or closer to the toes and avoid landing on the heel. I'm not running 10ks or anything but I can do a 3k alright.
I actually have flat feet and every single time i go to the doctor with a foot related problem he says exactly "You have very flat feet!" and it has caused me some troubles but nothing too major.
The flat feet part is interesting thank you, I have been walking with flat feet since childhood, then suddenly in my mid 20s, I started having spams in the base of my feet, and it was only then I was diagnosed with flat feet. It was mentioned to me that my tendons were stretched as a result of over working. Was given in soles which reduced the symptoms, but I was never able to walk normally again after. Apparently my symptoms are much more extreme than normal for this problem.
I would love a functional third eyelid actually. Often, I find myself focusing on something very intensely that I forget to blink, and my eyes end up drying out and getting red.
Wisdom teeth have been very useful to me. I ended up getting my deepest molars removed, both upper and lower jaw, and my wisdom teeth, which were already in the process of growing out the skin, took their place
Once people realize that there's no "finished" state of evolution, all these vestigial parts make sense. They're just things that haven't disappeared yet.
This is so crazy. I can move my ears and never really got why others couldnt (including my parents), and when I was younger I used to pretend that it affected my hearing and I would move them like dogs with sounds. video blew my mind just now
its interesting how the appendix has been labeled as "useless" when really all that's special about it is we can survive without it, but it definitely helps to keep it if it's not causing problems
It's clear to me when watching this video that much of Dr. Laitman's explanations was cut for the sake of time, but I for one would not mind watching a full length version. His presentation is very entertaining and informative.
Yeesss full version please
Full version and more features!
yesss a full version would be so nice. I was left thirsty for more
They rly got all the flat feeders to watch with the thumbnail 😂
Agreed. We need the Director's cut. Dare I say the Snyder cut.
Dr. Laitman was my anatomy teacher in medical school!! The man is a legend who cares as deeply for his students as he does for the human body, always thought he deserved a bigger audience!
I might’ve missed it in this video but where does he teach? He has a knack for it!
Icahn School of medicine at Mount Sinai in Manhattan. I was his student as well.
If he was he would have taught you the truth and that there is two species of humans and not one.
I could listen to him talk all day. For one, I love a good borough accent-it reminds me of yesteryear. And for two, he is probably the most charismatic doctor-scientist I’ve ever seen!
@@theoryofpersonality1420 your sentence is so dumb, it physically hurts
If this guy was my biology teacher with his same amount of energy.
I would be a doctor by now.
MORE OF HIM PLEASE!
@@WiseandVeganwow. Pathetic attempt to hype your fave documentary. There is no truth conspiracy surrounding vestigial anatomy except the ever lasting movement of Creationists against evolution. It's great that you woke up to mind- body awareness and attunement, but stay off Dr jL's and WIRED's coat tails you baiting bull shover.
no you wouldn't
@@-COBRA How come i am not a loser like you i actually reached a pretty high level in academia :D
The lies you tell yourself
you really belive your grandmothers grandmothers grandmothers grandmothers grandmothers grandmothers grandmothers was a ape or chimpanzee
This doctor is amazing. His passion for medicine is shown through his delivery of the material. I’d watch a lecture by him any day of the week.
I was born with flat feet and ever since I can remember - about 5 years old or so - walking for periods of time over 20 minutes would hurt my feet badly, and running was a no go unless it was done in extremely short bursts. Even after walking you could feel the foot pain for a long period of time, even if you're sitting down. Eventually I underwent the Evan's Procedure, which adds bone graphs to create an arch in my foot. After both feet were operated on and about 2 years of total recovery, my feet are almost back to normal. Sometimes weird foot cramps occur, and running or walking up stairs for excessive periods of time can hurt. Nonetheless, I'm very thankful that such a surgery exists, and I am much more mobile.
Don't take your arch for granted!
Glad you found a solution.
@@noodlessssssssssssssReally? I also have completely flat feet but I don’t feel any pain or discomfort.
I have flat feet and my sister closest in age has the biggest arch ever… I feel robbed.
I used to have special shoes in hopes to get an arch when I was little, but it just got so expensive! It also didn't help that school had us use formal black shoes and my special ones didn't cut it
flat feet actually quite beneficial for aquatic activities such as swimming and diving
This is not just a Dr. explaining this to us, but this gentleman is a natural born teacher, with the special nuances to draw the attention of his audience.
*genetically born teacher*
Literally, I loved his enthusiasm 😂
Meh, he's a teacher for monkey people. For the other 15% of the worlds population this is useless.
FR
He is a professor.
I have flat feet, and unfortunately passed it on to all four of my children. As far as we’ve been able to determine, no one else in my immediate family, or immediate ancestry, had or has flat feet. It’s very inconvenient and has resulted, so far, in my having three surgeries to one of my feet. All of my children have to use prescription orthoses. It never occurred to me to start trying to walk on all fours. If only I knew this before.
I’m the only flat footed person in my family. My solution so far has been to wear flatter shoes. What can I look forward to in life?
I also have flat feet, i try to stick to the most comfortable shoes as possible like adidas boost or nike react
@@iCozzh for me the adidas boosts make the bottom of my feet very painful
@@popcornbutter6820 really? Ive got a bunch of yeezys and ultraboosts and theyre lovely for my feet. The ultraboost 3.0 are noticeably worse than the 4.0 and newer which were significantly improved
Return to monke was the answer all along
I love the way he speaks! He is very clear and easy to understand and keep up with, even when I'm not fully paying attention I still got what he's saying. I like how he uses different pacing/emphasis to clarify his statements.
as someone with flat feet, i can confirm how exhausting and sometimes even painful it can be to just stand up for extended periods of time
bro it makes so much sense now, it always gets super uncomfortable standing for long periods of time with flat feet. People r always asking why it bothers me and I had no idea until now lol.
The exhaustion is better than the pain. I trained myself to flex the arches when standing. And i’m skinny… less weight equals less expense of energy to contract the muscles. If the pain/exhaustion impacts your life, and your BMI is high, i’d suggest working on weight loss.
I have have high arch feet, and standing for prolong time is painful on my feet.
Could try shoe socks(or sandles) for short periods of time. Many people have flat feet due to lack of using the arches (instead of genetics) so the muscles simply atrophy. I started doing it because the mucles in my feet were so weak that my toes could slip out of their joints and it's extremly painful. Rarely happens now, and it's only been about 4 months. (ligaments take longer to get strong).
@@meshark_t Imagine having flat feet.
As a flat footed person I remember growing up thinking how much I hated hiking and walking around all day. People use say I was so lazy because I got tired with my feet killing me. It was even worse growing up because I didn't have special shoes that cushion and people didn't know I had flat feet. Its funny because as an adults its very easy to find shoe design just for this particular issue.
I too have flat feet….but never got tired of walking…. But now I have been using prescribed arches in shoe soles (since like 4th grade) and it makes walking so much easier….like I can lift my feet up more comfortably. Though one problem I have faced A LOT is that my ankles twist so fast when I walk barefoot….I am guaranteed to have a twisted ankle at least once a month…sometimes not so bad but sometimes I cannot walk straight for a week…….also it’s embarrassing to tell people you have flat feet. Also to be called “medically unfit” for like admissions in defence or that sort of things…its weird and like you got no one to blame,,,,,but still I was happy my papa put much effort into my feet as a kid…he still does:)
prescribed arches will make your issue worse in the long run, that’s why you can’t even walk barefoot without twisting them. the supports are making all the muscles involved in naturally forming your arches are atrophying, slowly becoming so weak that you can’t even walk in the most natural state of your body; barefoot.
you should be looking into minimalist shoes, flat as possible and a wide toe box at the front. slowly rehabilitate the muscles in your ankles and over time you will slowly strengthen your feet and restore them ❤
@@BreeMorenoMendozabrybry so I will be 19 soon and am wearing prescribed arches since I was 9….so like a decade. And you’re saying that my issues are getting worse I don’t get it??? I prefer a little heel than footwear that’s completely flat…I won’t say that my feet muscles are weak compared to other people bec I played a little bit of sports even barefoot and it was fine
Also prescribed arches are heaven sent….I feel so much better when my shoes have arches. Rest assured I have no problem wearing sandals or bellies…that do not have arches
@@nish888try doing calf raises, I had this same issue only when using any type of insert or high heeled shoe. After doing calf raises during a lifting challenge I noticed my right ankle couldn't handle as much weight as my left, my calf could but not my ankle. I started at 5 lbs, and after waiting for my joint to get stronger I was able to move up in weight every other calf raise day. It was very surprising to learn about. I've had flat feet my whole life. Plagued by plantar fasciitis with every insert. I developed sever heel pain after wearing custom orthotics for a year, then turned into plantar fasciitis, hurt even more every tkme I put the insert in. I started actually walking around my house barefoot. Barefoot for 20 minutes, roll ice for 10 and so on. No more pain, and no more inserts.
What a great man. I can listen to him for ages. The last sentence he said really struck me - “the body is a culmination of our history”
Why edit out his explanations and not make a part 2??? Dr. Laitman is a really enthusiastic person and made this video compelling.
As a Doctor, I’ve always found it a little unnerving how easily we label a body part as “useless”. It’s a very strong term that makes people believe it’s a fact when in reality, it may just mean “not enough research”. Imagine how many perfectly functioning appendix’s have been removed preemptively under the guise of it being a useless body part.
I always thought this about wisdom teeth. Mine have never bothered me, yet dentist are constantly trying to make appointments for me to have them out. I have to speak up and say "hey! I don't want them out"
A dentist actually told me I might as well get them out now so they don't cause problems later. Well if I went by that logic, take all of my teeth. 😅
The thing about appendicitis is that it is a very tricky problem. It can many times give out false positives and many times there are appendices removed by mistake
But the problems that an unreasonably removed appendix creates is far far less than a burst appendix. Thats why doctors don't take risks at appendix and usually they remove it if they suspect there is a problem with it. In fact they even say there is no doctor who will diagnose appendicitis every single time, and if they do they have most likely missed an appendicitis.
@@gordatadosonly take it out if it does more damage than good
@@gordatados bro, all your other teeth didn't come up sideway like that though.
normal teeth are just, a teeth. brush it 2-3 times a day, go to the dentist appointment every 6 month to clean it up and you get them great for your whole life.
I got all 4 of mine removed before it become painfully large and hard to remove.
For sure, nothing God has created is "useless". If tens of thousands of "body parts" has already been found function for, one should only be way too much careful before saying "useless"!
The doctor explained it soo well. I've been trying to find a video on this topic, and this is by far the best as he explain's it in an understandable way without going into too much depth.
John 3:16 For God so loves the world that he gave his only begotten son so that whoever believes should not perish but have everlasting life.✝️
@@g4l.ballerAnd yet you provide no evidence of a sky daddy. (No one ever has.)
@@Mcfreddobecause there is so much evidence you cannot prove the evidence is incorrect
@@g4l.baller This is not your religious platform and has nothing to do with the video.
@@GamingWithKJ_YTlol oh you poor thing
I like this Doctor, he is the kind of knowledgeable person that has the knack for making probably complex portions of medical knowledge sound simple. Would live to see more of him! 😊
I have flat feet. it hurts my legs once in a while but I'm used to it
did u know that flat feet aren't allowed in the military?
@@shadygaming6523 It wasn't many years ago, but the time was going to forcely serve it in the military wasn't anymore, but I got dismissed by anyway. But I sill los almost a week on college.
I have flat feet, and growing up I had to go to several doctors to understand the issue. My parents were more concerned than I was, and doctors said that somehow I adapted to the foot structure to walk more comfortably. The doctors said they could do a surgery, but they recommended I wait until it started to become a real hinderance in my life. I still don't feel I need the surgery, even after I ran cross country and track in high school. Still, I prefer swimming laps (I was on swim team) over running laps anyday.
I have flat feet too but I don’t understand what the problem is? IS there a problem if you have flat feet? I don’t seem to have any issues.
@@sshelgetyes in my case i have constant pain in the bottom and sides when standing up for long periods of time
I have high arches and it's a real pain. Very hard to find the perfect fitting soles so that it doesnt feel like my foot is doing the splits on flat surfaces. Even inside I wear slippers
@@sshelgetit’s bad for some of us. I can’t comfortably play soccer for more than 30 min a day or the lower muscle on my shins and tendon muscle flare up in pain
High arches are not a good thing either. I envy people with normal arches haha, I can't stand for long periods of time without my special shoe inserts. Ya gotta have that support even if you have high arches, without it, your feet can flatten.
I just wanted to share a little fact! Humans and chimpanzees actually have comparable amounts of hair follicles, but the hair on our body is much more fine than compared to that of a chimp, and it makes us seem like we have "less hair". We do have less by volume, but perhaps not by individually counting them. Whether or not we have more or less hair than a chimpanzee really depends on how you ask the question.
that's really interesting if true
@@navehkamai4888it's not.
@@VEE0034💀
It is true! The number of follicles is around 5 million
and if anyone wants to argue that the barely visible hair serves no purpose, know that our sense of touch is most prominent in our fingers, feet and face (where many nerve endings are), not so much across the body. If a hair, that protrudes the skin, gets bend however, that is very detectible by our sense of touch, which means you'll mostly notice a bug crawling up your leg or down you neck.
I love the infectious energy, and enthusiasm this man has. He would make an excellent teacher if he was not one already at some point.
you talk like Dr. John Sturgis
I was thinking the same
I was thinking the same
I was thinking the same
i was thinking the same
I was thinking the same
the brain. Another organ that's never used in most people.
hahahahaha, good one
.. including you
lmao
@@kingzingo1784 and you
@@kingzingo1784n you😔
I have always found vestigial traits fascinating, this was a phenomenal video! Excellent job, I give it 10 out of 10 Goosebumps!
the ear thing... i can move my ears and I DO move my ears in reaction to sound. almost as a "maybe ill hear it better if i do this". sometimes i do it and i feel like a dog reacting to a sound lol
I have that ear thing and i have flat feet. Now i know why my feet muscle hurt after walking a long period of time. I was meant to walk on all 4's!
@@WiseandVegan go away
@@kreizeeboi it's not too late to start ....
@@pvic6959 I recently had an ear infection in my left ear (horrible btw) that eventually slightly spread to my right ear. Because of the pain in my right ear, my brain discovered how to move the muscle and now, at 35 can move my right ear for the first time. Left is still paralyzed though 😂
The moving ear thing!! I can manually control it, but I definitely noticed throughout the years of landscaping and welding, that certain noises make my neck tense up and pull my ears back a LOT, and it helps deflect the sound, rather than funnel it in.
Same!
I do this when I accidentally move a plate to lessen the sound
Interesting. My ears twitch toward the sound. I too can move mine consciously even one at a time. I like having these auricular muscles.
Well, anyone who has arms and ears can manually move ears...
So we must be genetically related
SAME! I notice I can be really expressive with my ears and move them quite a lot. I can usually pick out people who can do it too - if their ears move when they smile they can usually move just their ears if they try
Another cool thing about body hair is that some spots dense in hair also functionally lubricate the area and prevent chafing! People who shave cleanly often may notice chafing under their armpits and around their groin because of the high joint movement at those points.
What about children who don’t have hair in those places, do they have chaffing? Never heard of it.
@ Well children don’t really produced a lot of sweat in those places until puberty, and sweat is a huge contributor to chafing since it makes skin want to stick other skin while moving. Also well fitting clothing can help mitigate chafing, but for physical activities that you might not be wearing clothing (wink wink, not for children) pubic hair definitely helps with chafing.
@@fidget0227 I think you’re right children don’t sweat but as much
Man there were multiple times in this video where I was intrigued and waiting for Dr. Jeffrey to expand on what he just said but then it abruptly cut to the next part.
Yeah, and the editing was weird. In the middle of the hair explanation, it randomly goes "we lost our hair" and then continues explaining
@@MagnesiumAddicts it repeated a clip of him at one point I believe.
@@ethanpatch6840it did lol
Bro just mentioned "sometimes people have nipples on their stomach like a dog" and then moved on
@@ethanpatch6840 yeah it was annoying
My favorite vestigial muscles are the ones in the wrist that a subset of the population has - they apparently used to be used for gripping and swinging. I have these, and didn’t realize that they weren’t ubiquitous until very late in life. In high school art class, there was a project about drawing hands, and I remember being surprised that so many people just left out the muscles in the wrist and drew themselves with flat wrists. Imagine my surprise when I found out that most people _have_ flat wrists!
That's the palmaris longus muscle, and it's missing in ~15% of the population. Most people _do_ have this muscle.
@@12thDecember Yeah, I looked it up after I made this comment and realized my mistake :/ I wonder how that number might change in the future - if it’ll get higher or lower or stay about the same
@@12thDecember Now i just found out that i have this after looking it up… i thought everyone else did too.
I would love to have this level of didactics. It is accessible and universally understandable. We need more youtubers like this man.
No! you just need to read books, give time and learn! Nothig is given in youre brain whit the spoon! Doctors spend time understending it!! :P
@@rihardsbricis834 were you drunk writing this comment
@@rihardsbricis834 Rich culture for someone who can’t make the difference between studies and vulgarisation.
3:17 made me giggle
Me Too! Male nipples!
I remember hearing about the 3rd eyelid years ago, & I’m still kinda mad we lost. And some ethnicities can have wisdom teeth without any issue. I remember watching a dentistry video saying that indigenous South Americans (Bolivia & Peru) as well as West African & Black people with little to no European ancestry (like Haitians) usually don’t need wisdom teethed pulled because the high cheekbones & wider jawline as well as never needing braces. I’m 1/2 Bolivian & my wisdom teeth grew in normally but I decided to take them all out when I got a cavity in one of them & my dentist asked if I wanted to pull out the rest. It was my 1st & only cavity & I never needed braces
I don't know what it is worth but I saw a video that said also that because human have been mostly eating soft food they don't have to chew as much and it creates atrophy in the jaw. Chewing a lot especially growing up might grow muscles and improve jaw size, allowing for the wisdom teeth to develop better.
I'm going to experiment with my kids when I have them
@@octave38 ive also heard that the way people position their tongues is different and has a large impact on the development of the jaw. basically, youre supposed to rest your tongue so your jaw is closed and touching the roof of your mouth, and breathing only through your nose
@@james__anna_burns4885 I do this ( called mewing ) and have been doing this for as long as I can remember , no one told me about it and I thought it was normal. Its not really gave me a strong jaw, chin or anything ( which is what its supposed to do ). As long as you are not a mouth breather I really don't think that it matters all that much. The comparisons that you see for mewing are either children that are now adults or someone really exaggerating, different lighting etc. There is literally no scientific evidence to prove it helping anything at all.
Dunno. I'm white and i have all my wisdom teeth with zero issues.
Other people don't have wisdom teeth at all (congenitally)! 😅
I would love to see more of Dr. Laitman, I love his energy and how engaging he is regarding the topics he speaks about!
This was an amazing video, thank you WIRED. Please bring back Dr. Laitman for more videos, he was exceptionally clear in his reasonings but also hilarious and a joy to watch.
As an immunologist, the moment the appendix was introduced I was ready to come to the comments to correct you, as I thought you were going to say it is useless,...and then you highlighted and emphasized that it IS actually useful. THANK YOU
I have the "wiggly ear" muscle and I have a lot of fun with it, I also notice that when I hear a new sound in the ambient (like a car passing by or a new person joining the room unexpectedly), these muscles kind of "point" in the direction of the sound, together with my head of course.
Same!!
W wiggle
SAMEE!
Wiggle gang rise up
Joining the wiggle gang, when I hear a loud sound I instinctively use those muscles.
That appendix section makes SO much sense, i lost mine when i was a child and have been plagued by digestive issues ever since, resulting in 9 operations, 3 life saving, the loss of many organs and now a life full of pain! If only we had known this 30yrs ago 😢
Woah wait a minute, how many organs can you really lose and still type a youtube comment? 🤔
@@mrkiky I'm not an expert but i know you can live with just one kidney, one lung, possibly even without a heart by using an artificial one, which is basically a pump that's meant to keep you alive while waiting for a transplant
Do you like yogurt. If you hadn't done so maybe plain yogurt would help. If you did and it didn't help my fault or sumn
MANY organs?
@@buttarain27 see above list
Doctor Jeffrey needs to start his youtube career. Brilliant performance. Loving these human biology facts. Please do more Dr!.
I have very flat feet and running is a nightmare. I always wondered why it was difficult and why my feet hurt a lot but it’s starting to make sense.
Love the way this guy talks. Love his mannerisms. He seems very enthusiastic about what he teaches. Very entertaining and educational video.
Please bring this guy back in the future, we need more people like him explaining science!
Dude, he has the energy of the eccentric science teacher in high school that made learning actually interesting and fun!
bro at 4:29 be packing some balls, god dam he ain't scared of nothin'
Zoom lenses
@@pigeonlovehe's talking about the monkeys balls but sure thats cool too
That's a nice set of eggs but he should put them back in the basket...
In my case, I noticed a few years ago that when something happens around me, like a strange noise, I automatically raise my eyebrows, widen my eyes and tense my auricular muscles. The difference in hearing between relaxed and tense is barely noticeable, but is there. Is like you can hear more clearly things that sound acute and are far away.
I'm the same, when I hear a loud sudden noise, I tense this muscle and move my ears back, I honestly can't really tell the difference but it's almost instinctual to try and limit the noise which is super interesting
I just recently watched a video elsewhere that contradicted the idea that flat feet are primarily genetically inherited. It mentioned that Asian, Indian, and African pediatricians reported very few cases of flat feet, especially compared to American and European doctors. Babies feet are basically all flat and arches develop through childhood. The studies suggest that children who go barefoot more often in early childhood are unlikely to have flat feet.
that still sounds genetic, if it's regional like that. did they somehow prove that european genetics are not the cause of more europeans having flat feet?
the fact that its regional just makes the idea that its genetic even more valid
Not really, it more suggests cultural differences. Anyways, while I couldn't find the video I watched, here's a link to a study that also suggests that whether or not children wear shoes often is a better indicator of flat footedness. pubmed.ncbi.nlm.nih.gov/1624509/
It means European and American children wear shoes more often.
@@Fr00steeno it doesn’t. It implies environmental differences. If you took some of those same people and placed them into Europe and America and still had the same results then you’d have genetic evidence. As you have changed their environment without seeing a change in outcome.
I would LOVE more of this wonderful doctor! I can tell he’s a teacher
I understand Wired didn't mean anything by it, but the editor needs to chill out on cutting him up so much. "Even in many of the monkeys" *cut* "Our ancestors" *cut* "Ears are able to move" *cut* "a bit." I'm sure your editor doesn't know this, but monkeys are not our ancestors. Monkeys and humans share a common ancestor.
He calls monkeys our relatives, not ancestors. Nobody said monkeys are our ancestors
Except monkeys are also our ancestors. You should read a book
Not only high heels, but also modern shoes have heel drop and hard or cushioned shoes which deform our feet and make them lazy, hence our muscles never fully develop. The only things that do develop are flat feet, weak feet, bunions and hammer toes. The solution? Wearing no shoes or ‘barefoot shoes’.
Kanye must have strong feel by now
Bare feet is not ideal either, best solution is a custom shoe but it's very expensive to do
I think it’s worth noting that many of these are vestigial organs - not necessarily “useless.” As the doctor explains, they all provide some insight into our history and function and shouldn’t be negated as irrelevant or removable.
As a general rule, providing insight into the history, shouldn't be a factor when it come to considering something in our body part irrelevant or removable. It is not a museum it is a human body.
@@tamilselvan0x0 Lol, great argument
He literally says that, no need for you to say it again like it's your own knowledge
@@tamilselvan0x0 if it provides knowledge and insight on our history it's definitely not irelevant, in fact it very much is relevant. I do agree with the removable part tho.
@@tamilselvan0x0 even if you don't care about insight into our history, the example with the appendix originally being thought to be useless but now realizing that it does actually have a use is a good enough reason to not consider organs irrelevant. they could still have a function that we just haven't realized yet. as for removing organs it depends on the situation. legs aren't useless but people can still be amputated if required. it's on a case-by-case basis deciding whether the benefits outweigh the risks
Vestigial my a55, I use those muscles to lift my glasses 0:40
Lucky,I always gotta pull my glasses up with my hand
Same here 😂😂
I am a school teacher, this will definitely help me. You made my next lectures much more interesting and informative.. Thank you so much..
One of Wired's best videos ever.
I can listen to this man teach me about human anatomy all day. So interesting.
None of these make sense under "intelligent design". They all make perfect sense evolutionarily speaking.
T. Dobzhansky put it like this: 'Nothing in Biology Makes Sense Except in the Light of Evolution'.
Well you know, they're are so many "Vestigial" Organs that proved to be useful over the years.
It's getting to the point that it's really not making sense when you see an organ you don't understand, that it must be some evilutionary leftover.
Just beacause you don't see a reason doesn't mean it doesn't exist.
We've already learned this with the apendix and the the tonsil, as well, actually.
In fact, there's a few things he says are vestigial in this vidio have been proven to have a use in recent years, such as the coxyse. (It's conected to important muscles and nerves.)
And I think more of these organs will prove to be important as we learn more.
And the male nipple explination is kind of ridiculous he must be mistaken.
These are all examples of devolution, which makes sense under the fallen worldview. Evolution needs to find examples of organs increasing in complexity, not decreasing.
How do none of these make sense under intelligent design?
@@DUNC8888high complexity means more points of failure and more energy required to operate, if you can make something more simple with the same function that's evolving not devolving.
The flat feet one really validated my experience of being easily tired when walking long distances. While I know being overweight contributes a lot, I now understand that that weight also has been putting so much pressure on my flat feet which in itself is also not normal even if the person’s normal sized!
same! Also growth plate issues for me affected that, so the bone in my heel is really sensitive to pressure --> pain>
This guy seems like such a nice guy. And well at explaining too.
I'm a flat footer and nobody else in my family is. But no issues with them at all.
same!.......... but i think my grandfather was a flat footer
@@shrutibharti_sb im the only one. As a kid my parents often got me cheap shoes and I kept on having feet injuries because of it
Now that I'm grown I just get decent quality shoes, I won't be growing out of them anyways. Never had any issues again.
Also had ingrowing toenails as a kid, that also resolved with better shoes.
When im on bare feet, the whole thing touches the ground 😂
Wow ! Fellow flat footer here😂
I too have the problem of ingrown toe nails , one solution that worked out for me was letting the nail grow and cutting it straight instead of cutting it deep while tracing the natural curve of nail. I hope that makes sense😅
@@playingindies6730 I have good arches in my feet and get ingrown toenails semi-regularly if I cut them too short. I've heard being prone to ingrown toenails/hair is also a genetic thing.
Flat foot guy here 😅
On the last point, I ditched high heels during Covid & only wore a comfortable medium height pair with wider tips twice in the past 4.5 years. I noticed that all the bones, muscles & tendons in my feet adjusted. I now take a lot of care when choosing footware to make sure it's comfortable & supportive.
He sounds so passionate, how adorable. I enjoyed every second of it!!! ❤
Give me more Dr Laitman, I love this guy. He's so passionate about his field and is clearly very knowledgeable, qnd his joy is infectious and makes me want to learn more.
6:47 appendix is also a “storage” for white blood cells (very rich in MALT complexes). One of the reasons why kids can get appendicitis weeks after a stomach viral infection; the lymphatics swell up, blocks drainage in the appendix, and bacteria can overgrow there causing appendicitis.
This doctor is incredible at explanation! Good analogies, and a good mix of complexity and simplicity. I do wish the edits were a little less fast paced. He’s clearly entertaining enough to not need the fast edits!
As someone born with arched feet but who developed flat feet over time, treasure your arches! Not having them is painful and expensive (in the USA, anyway)
Research barefoot/ minimalist shoes. Orthotics begone!
Iam a flat foot person by birth and I never did sprint much nor I am a sporty or exercising person so I don't know whether I face any issues
Really? How does this even possible?
@@koray6261 If you don't use the muscles in your feet enough, then your muscles will weaken and your arches can collapse, just like any other muscles in your body. Modern shoes don't allow our feet to move naturally, it's like wearing casts on our feet. Barefoot shoes are thin, flexible, and are foot shaped so our toes have room to move. By wearing shoes like these, we can naturally regain strength in our feet, which can also take away the pain in our joints which is caused by standing, walking, and running incorrectly because of our shoes.
@@MichaelSheaAudio oddly, the collapsed arches started when I was a kid and went everywhere barefoot anyway. My younger sister has arches so high she needs specialty shoes to support them. We always say she stole my arches!
I want to thank you for genuinely being my favourite media of today, your video has held my attention perfectly. Thank you!
The man is giving a sweet grandpa vibe. I could listen to him full day
I love this guys energy and passion.
The constant cuts are kinda jarring though, I would have liked to have seen the full thing
this is like a teaser trailer - i want 5~10 minutes on each of these parts! more in depth please!
I remember comparing my feet to a friend's once because our wet footprints looked nothing alike, and I never actually noticed how much they can vary. He had flat feet with smaller pinky toes, while I have arched soles with longer toes. I'm guessing certain parts of the body have more variations going on? Because our hands and such didn't look nearly as different
There are 4 kinds of human feet: Roman, Celtic, Greek and Egyptian and there's a fascinating youtube video about it somewhere. (I have Greek feet, my mom has 1 Roman and 1 Celtic lol)
Oops, I forgot Germanic. The name of the video is Foot Shape Ancestry.
@@rachelraccoon5565 there are actually more. It's indeed a complete spectrum of variations that can manifest randomly combined in any individual. That thing of the four shapes is like horoscope, or phrenology. Just RUclips B-Tier material.
@@rachelraccoon5565 do you think that aboriginal people in Melanesia have, for instance, a 'Roman' or 'Egyptian' foot shape? Or a Greek one? Or a Celtic?
I thought so.
@@fL0p "I thought so"? Wtf Like you got me or something? lol Good job flop, you got me. Clearly I know nothing about aboriginal feet in Melanesia and I should therefore go kill myself. lol
Medical student here, awesome video Dr. Laitman! Really puts evolution and medicine into perspective. Thank you!
This guy taught me things in 10 minutes when my biology teacher couldn't teach me in half a semester
I would straight up love to just chat with this dude for an entire day 😂 He’s fricken awesome
The third eyelid would be pretty useful with all the screen time these days 🤔
I was thinking that, maybe future people will develop one haha
@@renslo689 You really believe that, and what would the humans in the far future look like following your evolution theory? dinosaur?
@@CSGOMatches just 3 eye lids. That's all. Lol not that serious haha
i was in hard laugh mode when he said our ancestors monkeys these people are against God
@@vmencherikiwhat?
He sounds like Shelton’s teacher, the one that became his grandmas boyfriend!
Dr. Sturgis :)
💯
That show is pretty funny😂
You mean Wallace Shawn?
I find the human body to be super interesting, it's really fun to think about all the ways we're connected to our ancestors (including distant relatives like fish) and all the puzzle pieces we've yet to discover and understand. It's great to see a video of an expert explaining things with just as much enthusiasm ❤ The connection between body hair & babies grabbing things on reflex is really cool *and* sweet :)
He sound like a Looney Tunes character
Body hair isn’t vestigial. Nowadays, rather than warmth, it’s used as an extension of our ‘feel’ sense. Hair vastly increases the surface area past our body that we can perceive. Some ways this is beneficial is we can recognize foreign items or insects approaching or on our bodies that may be harmful, and identify changes in air/temp.
This is showcased in the goosebumps section: as a defense mechanism, our hairs are raised and their sensitivity is increased so they can reach out and perceive even farther, functioning as an early warning system. Under each hair has a nerve receptor tied to it under the skin for this reason. If hair were actually non-functional, the nerve receptors would not exist.
They still help keep you warm.
So like a Spidey sense
This man's energy is phenomenal.
the arch feet is representation of human body being sick of flat earthers
Loving these human biology facts. Please do more Dr!
Whenever people complain about me not wearing high heels I'm gonna show them the last minute of this video.
More vids with this guy please!
*videos not vids. I do not understand the concept of wanting to shorten a word that is already short enough as it is. I find it ridiculous. However, I do understand wanting to shorten long words.
Bro what
3:45 I have this weird thing in my armpit that I never knew what it was. I'm now wondering if it's a nipple. I'll go check up with a doctor and update here if it was or not a nipple
Update?
Update?
I wish he could've added a section about gallbladders and their importance. Of course, they aren't useless and about a 4th of the worlds population has had theirs removed. I myself had mine removed due to complications of pain in the gallbladder area and other issues related that caused me to act quick and remove it. If he could've added a section on that, I would love the guy to pieces. Every part of our body is so fascinating and him explaining these parts with such energy and excitement makes me want to see him come back for a part 2 session with WIRED AutoComplete.
Gallbladder is important just as you say. Not just to store and concentrate bile, but also once removed, Many begin having Duodenal Gastric Reflux. Without the storage container that is the GB, Bile goes into the stomach a lot more.
Even with the GB, I still see HIda scans with reflux into the stomach instead of the GI tract.
I often wonder if overuse of Tums and other medicines can contribuite to this disorder?
Vestigial structures are carryovers that don't help us but don't hurt us enough to be selected against. A structure cannot just magically disappear once it becomes less useful. There are also structures that have been labeled as vestigial because their function wasn't yet understood, which is happening with the appendix. It now appears while the organ isn't completely necessary, it is beneficial. They often also still serve some purpose. For example, the remnants of the whale ischium still serves as an anchoring site for their reproductive organs. The wings of an ostrich are used in mating displays. For things like wisdom teeth and organs where losing them leaves us no worse for wear, it's often because selective pressure isn't acting on it hard enough or isn't acting on it at all in some cases and it's just up to genetic drift and random mutations to get the job done, and evolutionary change is slow.
I have relatively flat feet and running has been a no-go. I hurt both feet quite badly years ago where the arch would just burn and burn if I was walking for more than a few minutes. Something that's helped a lot, surprisingly, has been running with minimal shoes. Without the padding I'm forced to land more mid-foot or closer to the toes and avoid landing on the heel. I'm not running 10ks or anything but I can do a 3k alright.
I love the way this man speaks
It draws you in more and more
I absolutely adore this man. He's like the real life counterpart to a character that would be played by Wallace Shawn.
I love that he sounds like Wallace Shawn (Young Sheldon Professor) I could listen to him for hours.
I was totally thinking the same thing but I could not remember that actors name or what he's been in. Bingo!!
This doctor is very engaging! I admire his enthusiasm
Doctor, your enthusiasm is infectious. This video was fantastic!
I actually have flat feet and every single time i go to the doctor with a foot related problem he says exactly "You have very flat feet!" and it has caused me some troubles but nothing too major.
Research barefoot/ minimalist shoes. I have flat feet too and I've already gotten myself a pair and they are so nice to wear.
You can't convince me this guy doesn't do freaky experiments in his basement
The flat feet part is interesting thank you, I have been walking with flat feet since childhood, then suddenly in my mid 20s, I started having spams in the base of my feet, and it was only then I was diagnosed with flat feet. It was mentioned to me that my tendons were stretched as a result of over working.
Was given in soles which reduced the symptoms, but I was never able to walk normally again after. Apparently my symptoms are much more extreme than normal for this problem.
man i want him to be my teacher, i will even purposefully pick his department. He's so entertaining i could actually listen for hours.
sick vid. Love hearing someone passionate talk about something they know a lot about
I would love a functional third eyelid actually. Often, I find myself focusing on something very intensely that I forget to blink, and my eyes end up drying out and getting red.
This was great! Doc Laitman is really charismatic i would love to see a couple more videos with him in it.
Wisdom teeth have been very useful to me. I ended up getting my deepest molars removed, both upper and lower jaw, and my wisdom teeth, which were already in the process of growing out the skin, took their place
Once people realize that there's no "finished" state of evolution, all these vestigial parts make sense. They're just things that haven't disappeared yet.
Honestly, a very good educator at core.
This guy is pretty interesting. This was very entertaining and very informative. Give this guy his own show please 🙏
This is so crazy. I can move my ears and never really got why others couldnt (including my parents), and when I was younger I used to pretend that it affected my hearing and I would move them like dogs with sounds. video blew my mind just now
its interesting how the appendix has been labeled as "useless" when really all that's special about it is we can survive without it, but it definitely helps to keep it if it's not causing problems
I saw the title and instantly had to watch.