Even if it would take 20 years to regrow a limb, that is still a lot better than nothing. A child who lost a leg would be a lot better off with a chance to walk again in his 30s, rather then never!
Slow regeneration is better than no regeneration But walking around on crutches with a tiny stump with a baby foot on it trying to be a leg for 15 years probably isnt that great
The human race is constantly expanded with knowledge all over the place. I truly believe we’ll understand how to regenerate limbs at least in 100 years. I mean by that time we’ll all be dead unless we’re lucky, but it’s crazy still.
***** That would be the point (imo) instead of people artifically trying to break a record they will do it unwillingly and I like this kind of records more. So instead of most masoschistic person breaking the record, someone who actually survive a terrible situation wouldl break it.
A prosthetic limb would be a lot better. You'd have a faster, stroger arm/leg and soon with some technological advances that artificial limb could have skin that not only lets you feel and know the exact temperature of a surface on touch, but its chemical composition too. Or, you could have an exact copy of your lost limb 3D printed with stem cells and reattached like it was the original.
@@alejandrinosis this possible, can you give any one example of this type of advanced medical treatment. I will pay as much as I want. I just want my new forelimb ( right hand ) to grow. Is this practically possible, I have stem cells in my medical records. Humanity will lead this new technological achievement, if we did it.
@@alejandrinoswe could make a hybrid superhuman genes by extracting these type of regenerating genes from Axolotl ( A species of Salamander ) and Planaria ( A species of flatworms/Platyhelminthes ). We could actually make these growing our limbs possible without taking any risk for taking any hefty medical charges on us.
al-Bakh'kam Not necessarily, you could have a prosthesis that is like a shell or exo-skeleton that could allow the limb to regenerate without the need to change the prosthesis.
lets not forget if it is a child that lost a limb, it may take less time (albeit maybe a month or two less) to be at least useful, not to mention that once the limb is restored they could continue their teen - adult lives relatively normal.
RisefromyourGRAVE I doubt the brain damage repair, but joint and spinal injury looks less far fetched. Maybe they will be able to restore lost fingers, or regenerate fatal wounds in inner origens.
But remember, we're a long way off from that, while prosthetics that can be controlled remotely with just your mind exist now. By the time we get to limb regeneration we might actually choose prosthetics over our natural limbs. Even falling short of that, a 20 year wait might not be worth is if you have to keep changing your prosthetic, which would at least be only a minor downgrade. Though as RisefromyourGRAVE said, it could still be used for spinal or brain damage.
Hey if we reach a point were we can close open wounds like a stab wound or just a really deep cut without stitches then I'd say that's a pretty huge medical advancement. We could grow back nails a lot faster (those break and fall more often than you'd think) and we could heal from a broken bone much quicker. Cut your leg open in a car crash? No problem! It would be so cool.
Carloswith Ahat I think you will find that your comment is also "messed up" because when you told him that his sentence should start with "the" it should actually start with "The description..." because you should always capitalize the first word of a sentence. ;)
Carloswith Ahat i think he didn't put "the" in it because of speed related issues ("hey dude, think there'll be rain today?" .... notice how it makes sense without the "do you" in "do you think there will be rain today?")
Hey, this stuff works in fairy tales. I'll attach a few salamander body-parts to my stump for good measure, but then I run the risk of growing salamander hands.
I wan't science to do these things for me 1) Make me Immortal 2) Make me able to regenerate 3) Make me able to overclock my brain 4) Make everything look like tron, this is not required but it would be appreciated
About those flatworms . . . They are extremely cool to work with. I worked on a science fair project with them earlier this year that won first in zoology in the state. I couldn't go on to nationals because I was far too young, but I was really cool working with them. During the experiment, one group experienced their own "Permian extinction" and 85% of them died. The reason was quite funny, but anyone who doesn't know about them should get to know the planarian flatworm. They are cute and some of the coolest animals on the planet.
I believe that 1 reason for the "cracking" is just bursting air bubbles in the synovial fluid between joints (it acts as a shock absorber and lubricant to prevent friction). As to why it feels good I don't know...
awesome idea, if they could print a scaffolding for the special cells to help them regenerate faster...wouldn't have to wait 20 years for that new arm to grow :)
It sucks that it would take so long to regrow a limb, but I could see how this could really help people who have lost fingers or maybe kids who have had accidents and have lost limbs. I would expect the younger they are the faster the cells would regrow.
In an article I recently read on cancer and stress by Dr. Paul Rosch he presents a theory that some forms of cancer are actually small remnants of this regeneration adaptation. He cites an experiment where when salamanders were injected with carcinogens and, rather than developing cancer, they would grow new limbs in the affected area.
it may have something to do with the mucus covering their body keeping the area surrounded by a moist and clean environment while healing takes place. personally I think that in cancer lies the secretes to rapid regeneration for humans.
Quoting: "Podiatrist buddy told me this one. Lady has to have foot amputated and is given waiver forms to sign pre-op. Buddy asks if she needs time to think about it. She's very nonchalant and doesnt seem to care much what they do. He gets suspicious and probes a bit as to why she's not more concerned. She says she gets that they have to operate and it's ok because the foot will grow back. He then has to explain she's not a salamander. Things get a bit more serious."
It might take 20 years for a limb but think about the implications for other injuries. Horrific burns or scars could be gone in months, a finger could grow back in a couple years and all kinds of injuries could be healed very quickly.
Regenerative medicine has been around for a little while. It's still in it's early stages, but it has been used to regrow a number of things... Ears, nose, cartilage, heart valves, skin/membrane tissue... and more. One thing I'm very excited about is that there is a company working to regrow the male prepuce (foreskin) using one's own DNA/stem cells due to forced, non-consented genital surgery. Trials have already been started and it is looking very promising. I can't wait to be whole! Medical science can be amazing!
I don't mind not growing new limbs... But i am interested in is regenerating damaged organs or blood cells or combating hiv or other degenerative illnesses...
Is this re-grow ability in some way affected by where the animal lives? I have noticed that the animals with this ability are mostly aquatic, like octopi, jellyfish, starsfish, and the semi-aquatic like the salamander. All squishy with water. Awesome video.
Pixelayer Are you crazy? Putting your mind into a server and then control millions of you remotely while you're in a safe location, now that is the shit.
Maybe not whole appendages, but regrowing fingers or even hands might be really, really useful. Then again, artificial limbs are coming a long way as well, so in the future it might be better to go the Luke route instead of the Piccolo route.
Or we could live mostly in little tubes like in The Matrix, and use robot avatars to interact with hazardous environments that we could never survive? While the prospect of the heavily invasive procedure required to maintain a functional human body permanently inside a suspension medium would be distasteful, perhaps a less invasive procedure would allow for us to "jack-in" to semi-autonomous robots we could use to do tasks. Like mining, space exploration, rescue and recovery, or deep sea exploration. Although I do worry some about the fact that it'd have to be a two way information street, and having a huge opening like that for mind hacking is somewhat disquieting.
As I understand it, our lack of regeneration is at least partly because of our complex brains. For instance, nerve cells don't grow back in the spinal cord after a severe injury because telling cells to start dividing and growing might lead to nerve cells in the brain growing or moving, which could frag up your think goop.
Using extra cellular matrix from a pig's bladder, Lee Spievak regrew his finger tip which had been cut off, the finger print even matched those taken when he enlisted in the military. I'm not fully aware of all the details of this story but I thought it was interesting
Or using their regenerative method to synthesize limbs that would be grown for future "limb lacked patients". Either way I'm sure we would find some sort of enzyme that would speed the process up by then anyhow.
Although regrowth may not be viable or practical, this does open up the possibility of reattaching limbs while still retaining full mobility of the fingers or toes.
i feel like even if it took decades a lot of people would prefer that over never having a limb for the rest of their life. plus that raises the question, are the new limbs younger? would they last longer over older limbs? Would it be possible to achieve a sort of immortality by regrowing critical parts of your body? hm
We will definitely be able to fully regrow limbs in the future. It will be a hi-tech process, quite expensive, but possible to do in 6 months or less. I dream of the day when the study of science will be made mandatory for everyone, oh what an exciting world this is to live in! PS: Hank, seriously dude, MUCH LOVE. You have successfully built a fortress of light in a world darkened by superstition and ignorance, live long and prosper. AND GO MAKE MANY MANY MANY BABIES!!!! (your genes need to be preserved)
Aw, Why didn't you talk about The Axolotl! It is the caudate that is primarily used in regenerative research, besides they're just so freakin' adorable.
I just wiki'd "axolotl" just to remind myself how cute they are, and Wikipedia tells me that injecting an axolotl with iodine can make them metamorphose into an adult form... does this sound like a Pokemon and an evolution stone to anyone else?
I got really excited when I saw this video due to that, haha! I own two of them and did extensive research on the species earlier this year for an informative speech. I got my hopes up at the macrophage part since a very similar study was done on axolotls, but was disappointed to find out it was a different study (salamanders are just cool in general though). They're absolutely fascinating (and adorable) creatures to be sure though!
JDBlimegreen I'm assuming Wooper is after the first generation. Which means to me, Wooper does not exist. There are no more than 152 Pokemon, period. And that's just because I liked Misty's Togepi.
feels like we live in ancient times the fact we have not yet figured out how to trigger limb regeneration into babies cells while still in the womb. yet we can manipulate what eye/hair colour and eliminate certain genetic defects from ever occurring.
Are the decades it takes because of size or complexity? A new arm is a huge amount of cells compared to a thumb, but the hand is the most complex part of the arm. If I lost a finger, would it take most of those decades or would it be over in a year or two?
Allot of people are talking robot arms but as an artist, I don't believe a robot hand could replace my real hands. . . Maybe my left hand. Oh and on the topic. Has there been any talk on biocompatible materials!? This is super interesting to me because I read somewhere that it's pretty much the key to bionic eyes connecting to your brain properly. Probably get you them robot arms you love so much, too.
In the future, we’ll be able to grow/regenerate new bodies whenever we feel like it. We’ll take a yearly three month “vacation” and grow shiny new bodies.
I read about 2 years ago, that we actually have a turned off gene that lets us re-grow limbs, but when they turned it on in Mice and the limbs started growing back. They also started getting cancer.. :P
Used to own a red tail boa that was bitten badly on it's head. Next morning I was examining him (12 hours later), and the cut was gone. Only scar tissue remained. A day later the wound was like it never happened. I cut myself shaving and it doesn't heal for like a month. They can't research regeneration fast enough IMO.
Grow limb in jar , in some faster way. THAN attach it to body , and use regeneration purely for healing place where limb/body touches. All nerves endings, little and bigger veins , ect. Would it work ? In short. Regenerating glue stuff.
There was a scientist who was on to this... He was also a teacher in New York I think. Don't recall his name, but he had one arm, but then some weird stuff happened, I didn't understand much of what I saw on the news, something about a lizards, maybe he was testing on lizards... I don't know... Anyway way, too bad he stopped working on it, I think he was arrested
Having an arm be gone for 20 years is highly preferable to having an arm be gone until death, unless death occurs before 20 years, in which case, it is no more preferable.
No you print them on the body. you program the printer and throw a bunch of sesions you print stem cells onto the tissue so that you slowly print out a new arm on the person
Why is it that the audio levels are quite substantially different between episodes? It's not a huge deal, but unless it's a matter of youtube screwing with your sound, throwing in a bit of compressor and normalizing the levels should pretty much do the trick.
Personally, I'd be happy with 'just' reversing spinal cord damage, but then, I still have all my limbs. A couple of them don't work especially well, but they're still there!
Hey Hank!! Love your work, super fangirl, just to broke to be a patreon...... For now. So I've got a question!! What's up with this whole "one of the Great Pyramids is a death machine" thing!?!? I trust you as a source whereas I am skeptical of my own research. If there is already a video on it let me know please and thank. Btw you are a dream boat! Your wife is one of the luckiest woman in the world!!
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
Even if it would take 20 years to regrow a limb, that is still a lot better than nothing.
A child who lost a leg would be a lot better off with a chance to walk again in his 30s, rather then never!
Slow regeneration is better than no regeneration
But walking around on crutches with a tiny stump with a baby foot on it trying to be a leg for 15 years probably isnt that great
69th like
Humans naturally wouldn’t live that long. So it wouldn’t have made sense for us to evolve into regenerators.
You are all right don't mind but we can't change our genes in a milisecond it would take more than hundreds of years to adapt their characteristics
The human race is constantly expanded with knowledge all over the place.
I truly believe we’ll understand how to regenerate limbs at least in 100 years.
I mean by that time we’ll all be dead unless we’re lucky, but it’s crazy still.
If only we could! Would lead to some pretty unusual Guinness World Records however. 'Most Legs Regrown'.
the person who would have that record might end up continously cutting off their legs to ensure that they keep the record.
now thats a scary thought
If it took 20 years to regrow a limb only someone extremely stupid would intentionally cut it off except in very extreme circumstances.
*****
That would be the point (imo) instead of people artifically trying to break a record they will do it unwillingly and I like this kind of records more. So instead of most masoschistic person breaking the record, someone who actually survive a terrible situation wouldl break it.
Will Hoyt well if that is the case i can break it now by cutting my nails or hair or with small cuts to skin. Amount of flesh is the rule to go by.
Will Hoyt I say both ratio and absolute values.
Even if it did take 20 years to grow back a limb, that's still a lot better than a lifetime of no limb.
A prosthetic limb would be a lot better. You'd have a faster, stroger arm/leg and soon with some technological advances that artificial limb could have skin that not only lets you feel and know the exact temperature of a surface on touch, but its chemical composition too.
Or, you could have an exact copy of your lost limb 3D printed with stem cells and reattached like it was the original.
But if it takes 20yrs will the regrow leg actually look like an 60year old leg or an 40 yr old leg?
What this guy said.
Imagine being 40 years old and having a creepy baby arm for 15 years until it grows to full size.
@@alejandrinosis this possible, can you give any one example of this type of advanced medical treatment. I will pay as much as I want. I just want my new forelimb ( right hand ) to grow.
Is this practically possible, I have stem cells in my medical records. Humanity will lead this new technological achievement, if we did it.
@@alejandrinoswe could make a hybrid superhuman genes by extracting these type of regenerating genes from Axolotl ( A species of Salamander ) and Planaria ( A species of flatworms/Platyhelminthes ). We could actually make these growing our limbs possible without taking any risk for taking any hefty medical charges on us.
I don't know about you folks, but I'd take 20 years in a prosthesis followed by a new leg over the rest of my natural life in that same prosthesis.
al-Bakh'kam Not necessarily, you could have a prosthesis that is like a shell or exo-skeleton that could allow the limb to regenerate without the need to change the prosthesis.
lets not forget if it is a child that lost a limb, it may take less time (albeit maybe a month or two less) to be at least useful, not to mention that once the limb is restored they could continue their teen - adult lives relatively normal.
RisefromyourGRAVE I doubt the brain damage repair, but joint and spinal injury looks less far fetched.
Maybe they will be able to restore lost fingers, or regenerate fatal wounds in inner origens.
But remember, we're a long way off from that, while prosthetics that can be controlled remotely with just your mind exist now. By the time we get to limb regeneration we might actually choose prosthetics over our natural limbs. Even falling short of that, a 20 year wait might not be worth is if you have to keep changing your prosthetic, which would at least be only a minor downgrade. Though as RisefromyourGRAVE said, it could still be used for spinal or brain damage.
That is exactly what i was thinking while watching the video
Hey if we reach a point were we can close open wounds like a stab wound or just a really deep cut without stitches then I'd say that's a pretty huge medical advancement.
We could grow back nails a lot faster (those break and fall more often than you'd think) and we could heal from a broken bone much quicker.
Cut your leg open in a car crash? No problem!
It would be so cool.
I have 2 axolotls and when one bit off 2 of the second axolotls legs, they grew back fully within a couple of week! Amazing animals!
Agreed! I have Axolotls as well, and their regrowth time is amazing.
They're cancer proof as well. Macrophages (big eater white blood cells) make short work of cancer.
Description is messed up, it says "So we can't we?" instead of "So why can't we?"
I think you will find your comment is "messed up" as it should start with "the" or it is grammatically incorrect.
Carloswith Ahat I think you will find that your comment is also "messed up" because when you told him that his sentence should start with "the" it should actually start with "The description..." because you should always capitalize the first word of a sentence. ;)
DonkeyxKong93 He did.
Carloswith Ahat i think he didn't put "the" in it because of speed related issues ("hey dude, think there'll be rain today?" .... notice how it makes sense without the "do you" in "do you think there will be rain today?")
Thanks!
Piccolo style limb regeneration?
Shit out a new arm with purple blood around it.
green
@@stickboianimations2273 red in some dubs
So if I chew my arm off, I just need to eat a bunch of Salamanders and *poof*... new arm.
If you could somehow convince the macrophages of that salamander to skip your digestive tract and enter your bloodstream, maybe!
Hey, this stuff works in fairy tales. I'll attach a few salamander body-parts to my stump for good measure, but then I run the risk of growing salamander hands.
How can you be sure that the attached salamander body-parts don't convince the rest of your body to grow in a salamander?
Hmm... I haven't thought of that. But hey, I'll be immortal!
YES! You sir, are a genius, but where to get all of those salamanders?
I wan't science to do these things for me
1) Make me Immortal
2) Make me able to regenerate
3) Make me able to overclock my brain
4) Make everything look like tron, this is not required but it would be appreciated
I'd say live as long as I want to not immortal. Because not being able to die would suck.
well at the very least give us hoverboards before we die
Oh yeah,I'm sure you want to live for billion of years.
Imagine becoming a vegetable while you are immortal.
What's with the contraction in want? Like what two words are you putting together?
So excited to share this with my science 10 students as we study cells! Thanks!
About those flatworms . . . They are extremely cool to work with. I worked on a science fair project with them earlier this year that won first in zoology in the state. I couldn't go on to nationals because I was far too young, but I was really cool working with them. During the experiment, one group experienced their own "Permian extinction" and 85% of them died. The reason was quite funny, but anyone who doesn't know about them should get to know the planarian flatworm. They are cute and some of the coolest animals on the planet.
This is a good channel. Lots of information given quickly. love it.
Meanwhile, Titan Shifters are laughing in the distance and the Elrics brothers are very pissed.
*Elric
FMA and AoT references ftw
They taught us about regeneration and starfish. Amazing
Why do knuckles crack? And why does it feel so good?
Check out our Subbable...
If I'm correct its the release of gas
Popping a little gas bubble that releases pressure is my theory.
I believe that 1 reason for the "cracking" is just bursting air bubbles in the synovial fluid between joints (it acts as a shock absorber and lubricant to prevent friction).
As to why it feels good I don't know...
I think I read somewhere that it relaxes the muscles around the joint.
This together with 3D printing will revolutionize medicine.
Not just medicine, everything.
awesome idea, if they could print a scaffolding for the special cells to help them regenerate faster...wouldn't have to wait 20 years for that new arm to grow :)
***** Pretty sure the pain would still be a pretty good reason not to amputate yourself for fun.
***** ?
heatherwanderer777 Yeah, exactly. Not to mention what you could do with organs like hearts and kidneys!
Hope they figure it out soon, would greatly be beneficial for most paralyzed individuals.
I've always wondered this! Thanks for the super informative video!
(And I love the hanklerfish)
Wow, such science. Much regeneration.
i'm growing some limbs in my fridge
lol
R/cursedcomments
Hol up
Cool
🤚🏼🖖🏼👌🏽👍🏼😂🤣😆
It sucks that it would take so long to regrow a limb, but I could see how this could really help people who have lost fingers or maybe kids who have had accidents and have lost limbs. I would expect the younger they are the faster the cells would regrow.
Every last bit that I learn helps feed my sci-fi explanations for how such crazy things like human regeneration work. Woo!
Please do a video on why some people shake their leg/feet randomly whilst sitting etc
You can't regrow body part-
Deadpool: hold my beer
In an article I recently read on cancer and stress by Dr. Paul Rosch he presents a theory that some forms of cancer are actually small remnants of this regeneration adaptation. He cites an experiment where when salamanders were injected with carcinogens and, rather than developing cancer, they would grow new limbs in the affected area.
I think it's been six months since I watched an even halfway interesting scishow episode. It's about time.
I freakin love you Scishow!
My father lost his other arm some time ago, so this is an interesting post.. too bad we are not going to see such tec in the near future.
I just watched like 40 videos. You're awesome!!
it may have something to do with the mucus covering their body keeping the area surrounded by a moist and clean environment while healing takes place. personally I think that in cancer lies the secretes to rapid regeneration for humans.
First science lover here! :)
No.
Carloswith Ahat shh I know :v
Oh yeah I have a question as well! (video idea) why do leaves change colour in autumn? (if you haven't done it already)
Great video and channel guys!
Quoting: "Podiatrist buddy told me this one. Lady has to have foot amputated and is given waiver forms to sign pre-op. Buddy asks if she needs time to think about it. She's very nonchalant and doesnt seem to care much what they do. He gets suspicious and probes a bit as to why she's not more concerned. She says she gets that they have to operate and it's ok because the foot will grow back. He then has to explain she's not a salamander. Things get a bit more serious."
It might take 20 years for a limb but think about the implications for other injuries. Horrific burns or scars could be gone in months, a finger could grow back in a couple years and all kinds of injuries could be healed very quickly.
All we need is a breakthrough!! don't be so pessimistic!! if we keep at it i bet we can see strides of progress on this in the next 10-20 years even!
Regenerative medicine has been around for a little while. It's still in it's early stages, but it has been used to regrow a number of things... Ears, nose, cartilage, heart valves, skin/membrane tissue... and more.
One thing I'm very excited about is that there is a company working to regrow the male prepuce (foreskin) using one's own DNA/stem cells due to forced, non-consented genital surgery. Trials have already been started and it is looking very promising. I can't wait to be whole! Medical science can be amazing!
Can you plz name the company and what about their trials, are they yet successful
I don't mind not growing new limbs... But i am interested in is regenerating damaged organs or blood cells or combating hiv or other degenerative illnesses...
So this explains the legless hippie in the park I always see licking salamanders.
Is this re-grow ability in some way affected by where the animal lives? I have noticed that the animals with this ability are mostly aquatic, like octopi, jellyfish, starsfish, and the semi-aquatic like the salamander. All squishy with water. Awesome video.
Good point maybe low keratin or fibrin or something
I love this show.
"You fool... Have you forgotten that Piccolos cells are a part of me?"
Ah, Hank, there's a typo in the description: "So we can't we?"
Hank, NEXT TOPIC QUESTION/SUBJECT: why do bones pop?
Just waiting till I can cut of my arm and grow a new one until I can have an arm collection.
Although regeneration sounds great, I think that robotic arms are way more awesome.
FMA automail is the shit bro
Derpy Dimentio
Putting your soul into armor is even better than automail
Pixelayer
Are you crazy?
Putting your mind into a server and then control millions of you remotely while you're in a safe location, now that is the shit.
but my skin is soo soft :(, and feeling feels soo good. :(.
Chris Van Nooten We are Legion.
We'll be 3D printing new limbs (out of your own cells) long before we figure out how to get the body to regenerate itself in that way.
At 0:20 of the video, the globe rotates towards the wrong directions. It should rotate from west to east in order to have sunrise at the east.
42 views? Well I showed up at the right time
How?
Carloswith Ahat 42 the meaning of life the universe and everything according to Hitchhikers guide to the galaxy
Well, yes. And I happened to go on RUclips right when the video went up
QUESTION!
How does the cells know when to stop? Like lets say the limb was 4 inches when it was cut into 1 inch, how does it know to stop at 4 inches?
Maybe not whole appendages, but regrowing fingers or even hands might be really, really useful.
Then again, artificial limbs are coming a long way as well, so in the future it might be better to go the Luke route instead of the Piccolo route.
Or we could live mostly in little tubes like in The Matrix, and use robot avatars to interact with hazardous environments that we could never survive? While the prospect of the heavily invasive procedure required to maintain a functional human body permanently inside a suspension medium would be distasteful, perhaps a less invasive procedure would allow for us to "jack-in" to semi-autonomous robots we could use to do tasks. Like mining, space exploration, rescue and recovery, or deep sea exploration.
Although I do worry some about the fact that it'd have to be a two way information street, and having a huge opening like that for mind hacking is somewhat disquieting.
You should do a video on Chikungunya and how it might come to the US.
As I understand it, our lack of regeneration is at least partly because of our complex brains. For instance, nerve cells don't grow back in the spinal cord after a severe injury because telling cells to start dividing and growing might lead to nerve cells in the brain growing or moving, which could frag up your think goop.
Using extra cellular matrix from a pig's bladder, Lee Spievak regrew his finger tip which had been cut off, the finger print even matched those taken when he enlisted in the military. I'm not fully aware of all the details of this story but I thought it was interesting
Or using their regenerative method to synthesize limbs that would be grown for future "limb lacked patients". Either way I'm sure we would find some sort of enzyme that would speed the process up by then anyhow.
I love this guy
Although regrowth may not be viable or practical, this does open up the possibility of reattaching limbs while still retaining full mobility of the fingers or toes.
The closest thing we have to growing back limbs is angel dust. The stuff's amazing
Can you give your take on the recent study showing that the polar ice caps have actually grown? I would like too understand it better.
Once we have the technology, I can see it being used to grow back lost fingers and toes. Those are significantly smaller than a whole limb.
I'd kinda like your thoughts on the "solar roadways"
I saw this topic on the science channel today about a matrix that can somehow rebuild body parts
i feel like even if it took decades a lot of people would prefer that over never having a limb for the rest of their life. plus that raises the question, are the new limbs younger? would they last longer over older limbs? Would it be possible to achieve a sort of immortality by regrowing critical parts of your body? hm
This feels like General Grievous over here.. But not a freaky robot version...
We will definitely be able to fully regrow limbs in the future. It will be a hi-tech process, quite expensive, but possible to do in 6 months or less. I dream of the day when the study of science will be made mandatory for everyone, oh what an exciting world this is to live in! PS: Hank, seriously dude, MUCH LOVE. You have successfully built a fortress of light in a world darkened by superstition and ignorance, live long and prosper. AND GO MAKE MANY MANY MANY BABIES!!!! (your genes need to be preserved)
Aw, Why didn't you talk about The Axolotl! It is the caudate that is primarily used in regenerative research, besides they're just so freakin' adorable.
I just wiki'd "axolotl" just to remind myself how cute they are, and Wikipedia tells me that injecting an axolotl with iodine can make them metamorphose into an adult form... does this sound like a Pokemon and an evolution stone to anyone else?
I got really excited when I saw this video due to that, haha! I own two of them and did extensive research on the species earlier this year for an informative speech. I got my hopes up at the macrophage part since a very similar study was done on axolotls, but was disappointed to find out it was a different study (salamanders are just cool in general though). They're absolutely fascinating (and adorable) creatures to be sure though!
Gemtric Very Cool! I'd listen to that informative speech.
IceMetalPunk Wooper the Pokemon is actually based on the Axolotl. People who own Axolotls in Japan like to call themselves WooperLoopers
JDBlimegreen
I'm assuming Wooper is after the first generation. Which means to me, Wooper does not exist. There are no more than 152 Pokemon, period. And that's just because I liked Misty's Togepi.
How close are we to Deadpool-like levels of regeneration?
About 1,500 years.
Nicodemus Edwards damn. I wanted my arm and leg back. Ah well, guess I'll just go back to finding a Philosopher's Stone...
+alex Gonzalez I'm pretty sure it'd grow back the same size.
+Nicodemus Edwards it didn't grow back at all...
+alex Gonzalez
It doesnt, its referred to as circumcision
When you cut off a salamander's leg, how does the body know enough to grow a new leg instead of the old leg growing a new body?
Will the latter doesn't happen because the cut-off leg really doesn't have enough blood flow to stay alive I imagine.
feels like we live in ancient times the fact we have not yet figured out how to trigger limb regeneration into babies cells while still in the womb.
yet we can manipulate what eye/hair colour and eliminate certain genetic defects from ever occurring.
why don't you do an episode on the Bose-Einstein-Condesate. you have donean episode on absolute zero and this topic fits perfectly
Are the decades it takes because of size or complexity? A new arm is a huge amount of cells compared to a thumb, but the hand is the most complex part of the arm. If I lost a finger, would it take most of those decades or would it be over in a year or two?
Allot of people are talking robot arms but as an artist, I don't believe a robot hand could replace my real hands. . . Maybe my left hand.
Oh and on the topic. Has there been any talk on biocompatible materials!? This is super interesting to me because I read somewhere that it's pretty much the key to bionic eyes connecting to your brain properly. Probably get you them robot arms you love so much, too.
In the future, we’ll be able to grow/regenerate new bodies whenever we feel like it. We’ll take a yearly three month “vacation” and grow shiny new bodies.
I read about 2 years ago, that we actually have a turned off gene that lets us re-grow limbs, but when they turned it on in Mice and the limbs started growing back. They also started getting cancer.. :P
Used to own a red tail boa that was bitten badly on it's head. Next morning I was examining him (12 hours later), and the cut was gone. Only scar tissue remained. A day later the wound was like it never happened. I cut myself shaving and it doesn't heal for like a month. They can't research regeneration fast enough IMO.
I'm surprised that there wasn't any Doctor Who puns in this episode.
Can you do a video on the Higgs boson? Or even better the Higgs field?? PLEASE!!
So maybe not a new arm, but what about nerve repair. How about complicated but small organs, such as glands or eye components?
Grow limb in jar , in some faster way.
THAN attach it to body , and use regeneration purely for healing place where limb/body touches. All nerves endings, little and bigger veins , ect.
Would it work ?
In short. Regenerating glue stuff.
There was a scientist who was on to this... He was also a teacher in New York I think. Don't recall his name, but he had one arm, but then some weird stuff happened, I didn't understand much of what I saw on the news, something about a lizards, maybe he was testing on lizards... I don't know... Anyway way, too bad he stopped working on it, I think he was arrested
Amazing!!
TruthSurge That's something I'm Going to learn in Biology 3 this year
I don't get what u were saying at first but at the end I figure it and I understand. XD
Having an arm be gone for 20 years is highly preferable to having an arm be gone until death, unless death occurs before 20 years, in which case, it is no more preferable.
QUESTION FOR SCISHOW: Why do some symptoms of illnesses get worse during the nighttime, or darker times of day?
Please do thorium energy!!
I think 3D printing will let us print new arms and legs in the futer
I hope this was a joke.
No you print them on the body. you program the printer and throw a bunch of sesions you print stem cells onto the tissue so that you slowly print out a new arm on the person
***** Make it work.
This is one of the dumbest conversations I have ever seen.
Xorran TM Bio-printing is actually a real thing. Its not a fully-fledged, working thing yet, but they are working on it.
I was actually in a lab that was researching those exact questions. lol being current =)
We are alive during an amazing time in history....
What are zits/pimples and how do you prevent them
Why is it that the audio levels are quite substantially different between episodes? It's not a huge deal, but unless it's a matter of youtube screwing with your sound, throwing in a bit of compressor and normalizing the levels should pretty much do the trick.
We might be able too in the near future :D
Personally, I'd be happy with 'just' reversing spinal cord damage, but then, I still have all my limbs. A couple of them don't work especially well, but they're still there!
You are the best.
maybe the black knight was a salamander which is why he didn't care when king arthur cut off his limbs!
How did you generate a Hank? Does it eat corndogs?
"Doctor gave me a pill and I grew a new kidney!" ST4
It may take a while for arms to regrow, but how long would a finger take?
Can't stop thinking about the amazing spider-man and giant ware lizards running around everywhere.
Hey Hank!! Love your work, super fangirl, just to broke to be a patreon...... For now. So I've got a question!! What's up with this whole "one of the Great Pyramids is a death machine" thing!?!? I trust you as a source whereas I am skeptical of my own research. If there is already a video on it let me know please and thank. Btw you are a dream boat! Your wife is one of the luckiest woman in the world!!