Why Some Parasites Are Actually GOOD (And Which Can Kill You)

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  • Опубликовано: 25 май 2024
  • When we think parasites, we often think of illness, disease, and discomfort. But did you know some of them can actually be helpful? Join Stefan Chin and learn all about them in a fun SciShow compilation all about the world of parasites!
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    Original Episodes:
    Human Parasites - • Terrifying Parasites I...
    Brood Parasites - • Brood Parasites
    Mind-controlling Parasites! - • Mind-controlling Paras...
    Toxoplasmosis: How Parasites in Your Cat Can Infect Your Brain - • Toxoplasmosis: How Par...
    Why Don't Humans Get Heartworm? (Spoiler: We Do) - • Why Don't Humans Get H...
    Why You Might Want Parasitic Worms - • Why You Might Want Par...

Комментарии • 990

  • @listennui
    @listennui 2 года назад +1128

    No sir, this tapeworm is my antihistamine support animal

  • @pentalarclikesit822
    @pentalarclikesit822 2 года назад +155

    58,484 fears. . . "Good news is very unlikely a fish will swim up your urethra!" . . . 58,483 fears.

    • @abdouaboud7490
      @abdouaboud7490 2 года назад +13

      58484 if you like swimming in pounds or lakes

    • @korioa
      @korioa 2 года назад +6

      @@abdouaboud7490 58,483 if you're into that sort of thing

    • @abdouaboud7490
      @abdouaboud7490 2 года назад +3

      @@korioa 58484 if the fish is also into those sort of things

    • @lazertroll702
      @lazertroll702 2 года назад +1

      What's the point of counting fears? How could someone possibly be so fearful? I don't get it .. 😕

    • @opalumbre
      @opalumbre 2 года назад +1

      It was a joke

  • @SerunaXI
    @SerunaXI 2 года назад +480

    Worst part of dealing with bedbugs is you are paranoid even years after you are free of them. Lord, there are days I still wanna prepare the vacuum and flip the mattress up just to do a sweep.

    • @ryanblack2986
      @ryanblack2986 2 года назад +47

      omg i know! When i moved into my apartment it was infested. I couldnt sleep and kept feeling imaginary itches. I sprayed sprayed and sprayed some more and finally got rid of them. almost a year later though i found one crawling out of the drain in my bathroom sink, very unusual for bed bugs. still freaked!

    • @tallahasseepcs8329
      @tallahasseepcs8329 2 года назад +27

      @@ryanblack2986 definately should spray again! Took us 2 years to rid ours we got from a couch we bought from a really nice home. Felt bites and looked and it was infested. That gave me ptsd for any used items lol. 2 damn years

    • @Skag_Sisyphus
      @Skag_Sisyphus 2 года назад +13

      It's been a year since I left the CCC housing that gave me bed bugs and I'm still waking up in cold sweats swatting imaginary bugs. Not that squashing them kills them. You have to crush them between your nails or dump caustic chemicals on them etc.

    • @tallahasseepcs8329
      @tallahasseepcs8329 2 года назад +13

      @@Skag_Sisyphus I have never felt more satisfied then when I found out I had won that war.

    • @Skag_Sisyphus
      @Skag_Sisyphus 2 года назад +3

      @@tallahasseepcs8329 it scared me a little knowing the sick pleasure i took watching them squirm in agony as they died sicking in caustic chemicals.

  • @joshuasalem5022
    @joshuasalem5022 2 года назад +446

    1:24 The “You are mostly bacteria” fact has since been corrected. You actually have about the same number of human cells and bacteria cells, but you get rid of most of that bacteria every time you defecate.

    • @frankabjh674
      @frankabjh674 2 года назад +26

      finally i thought i was tripping

    • @nathanseals6009
      @nathanseals6009 2 года назад +11

      Cmon scishow. Do better

    • @roastedtoast4015
      @roastedtoast4015 2 года назад +44

      I think remember Hank narrated a video correcting it...

    • @fastjerk
      @fastjerk 2 года назад +31

      @@nathanseals6009 it was 2012 hadn't been corrected yet

    • @theentertaner
      @theentertaner 2 года назад +4

      You get rid of about a third of the bacteria every time you poop

  • @baranorak4080
    @baranorak4080 2 года назад +540

    2012 Hank... wow that's quite the throwback

    • @geraldbal7945
      @geraldbal7945 2 года назад +3

      can we get a just hank?

    • @monted91
      @monted91 2 года назад +7

      You commented this two hours ago. Imagine how I feel now in the future.

    • @BirdThatEatsPrometheussLiver
      @BirdThatEatsPrometheussLiver 2 года назад +2

      @@monted91 no

    • @addicted2caffeine
      @addicted2caffeine 2 года назад +1

      i saw your comment and now want to see decade younger hank

    • @animeloveer97
      @animeloveer97 2 года назад +1

      its weird remembering seeing those old videos when they were new

  • @stkygrnz
    @stkygrnz 2 года назад +1471

    Just seeing 2012 Hank shows that the man was made for being a presenter. He is so natural at it. His little tics and speaking style haven't changed at all over the years.

    • @daurykais
      @daurykais 2 года назад +19

      What, you don't notice all the cuts?

    • @nadapenny8592
      @nadapenny8592 2 года назад +41

      If you enjoy his style, check out the Journey to the Microcosmos series. It's very natural

    • @stuck_around
      @stuck_around 2 года назад +64

      his cadence is a bit less 'drunk' now but still has plenty of character

    • @HotelPapa100
      @HotelPapa100 2 года назад +15

      Actually early Hank turned me off completely (not this presentation, but when he put on his ADHD persona.)

    • @Usernoobmaster
      @Usernoobmaster 2 года назад +9

      That's what made him unique

  • @renkio
    @renkio 2 года назад +99

    Since toxoplasma gondii infection correlates with an increase risk of depression and self-harm in humans, might it not cause the same in rats? So maybe infected rats become suicidal. It's not that they're suddenly cat-loving; they're probably like "just take me I don't care anymore".

  • @mistingwolf
    @mistingwolf 2 года назад +211

    Oh, the worms part made me remember something very sad. I was watching a veterinarian show and owners came in with a very lethargic bearded dragon. Owners of any animal, be sure to get your pet checked regularly for parasites! (something gross follows)
    .
    .
    .
    .
    The poor thing had so many worms in it that when the animal was sedated for examination, they started crawling out of its windpipe. Yeah, that animal did not make it.

    • @sharonlisha1783
      @sharonlisha1783 2 года назад +18

      😭 😰😭😱😭😫😭

    • @peggedyourdad9560
      @peggedyourdad9560 2 года назад +33

      How tf did those owners not notice it much earlier because we both know that a parasitic infection like that takes a long time to develop with plenty of signs and symptoms along the way.

    • @char1211
      @char1211 2 года назад +31

      @@peggedyourdad9560 Idk how familiar you are with reptiles but it can be incredibly difficult to read their body language and they rarely look like they're sick or in pain, even though they are. Obviously there are still signs and symptoms to look out for but they're easy to miss, especially for an inexperienced owner!

    • @peggedyourdad9560
      @peggedyourdad9560 2 года назад +20

      @@char1211 I’m decently familiar with keeping reptiles, I have a normal bp and 2 leopard geckos. They definitely don’t act like how you’d expect them to if they’re not well, but in my experience any sudden behavior change is pretty big sign that something’s not right. I think this where just being familiar with both the species and individual becomes especially important. I will admit though that I do still have to give my guys a good look-over every once in a while to check for issues, that’s actually how I caught the very early signs of a scale infection on my bp before it became to big to deal with at home (he’s fine now btw after about 2 weeks of nightly iodine baths). I still stand by what I said, if they actually cared to pay attention they would’ve noticed there was something up before that point.

    • @char1211
      @char1211 2 года назад +11

      @@peggedyourdad9560 Oh cool! I have a crested gecko myself, though I've only had him for a couple of months so you're way more experienced than me. I agree that they probably could've noticed the infection earlier but I also think it's unfair to assume they were neglectful

  • @yamushu725
    @yamushu725 2 года назад +433

    Hank's little laugh as he goes, "We're our little biome!"
    that was rlly adorable
    ( 1:54 )

    • @gtbkts
      @gtbkts 2 года назад +2

      Lmao

    • @danwic
      @danwic 2 года назад +2

      He is adorable:) love every video with hank in it :))

  • @alphatonic1481
    @alphatonic1481 2 года назад +78

    When i hear about helpful worms i have to think about that one Futurama episode where Fry got worms by eating a black tomato slice thinking he ate a chocolate cookie. The worms he got from it made him 100% healthy and even helped him grow some muscles. Back then i wanted those worms too.

    • @johnhoran5814
      @johnhoran5814 2 года назад +2

      Ya I really love that episode of Futurama, I think he got them from a burger. 😎👍

    • @Hi_Im_Akward
      @Hi_Im_Akward Год назад +26

      He got them from an "egg salad sandwich " from a vending machine inside a gas station bathroom

    • @robertabarnhart6240
      @robertabarnhart6240 Год назад +7

      @@Hi_Im_Akward Yeah - the type of "egg" wasn't specified....

    • @babitas5401
      @babitas5401 10 месяцев назад +2

      Yes sometimes when you eat unhealthy food you get it

    • @lobban2
      @lobban2 7 месяцев назад +1

      They even made him heal wounds in seconds and trimmed his brain to make him smarter. I wouldn't mind worms if they made me superhuman.

  • @ehjones
    @ehjones 2 года назад +121

    It's worth pointing out about toxoplasmosis that the eggs shed in the faeces don't become infective for 1-5 days so fresh faeces isn't infective. It's microscopic faecal residue that might get on your cats paws and then gets shed wherever the cat goes that's infective.
    Clean out the litter tray promptly, and wash your hands regularly, especially after gardening or playing outside.

    • @peggedyourdad9560
      @peggedyourdad9560 2 года назад +14

      I've heard that many of these cases might happen from people not washing their garden vegetables before eating or preparing them if they have a cat that goes outside.

    • @saritalevinthal3455
      @saritalevinthal3455 2 года назад +10

      You should also wash red meat and wash your hands after handling red meat…I was born with toxoplasmosis

    • @samhg3658
      @samhg3658 2 года назад +11

      And don't let your cat put their paw on your face. The cats around my house love doing that and we can't lay in peace without them coming up to us and putting their whole body over our faces.
      My mom can't barely watch tv because her cat simply sits on her neck and stays there.

    • @PoweredByLS2
      @PoweredByLS2 Год назад +3

      @@saritalevinthal3455 How did you get it diagnosed?

    • @Invisble748
      @Invisble748 Год назад +2

      This is most likely for outdoor cats or indoor cats who eat raw meat or rodents.

  • @SuLokify
    @SuLokify 2 года назад +120

    Parasites are evolutionary wizards. Their relationship with their hosts create a beautifully elliptical fitness back-and-forth.

  • @thescholarsjourney661
    @thescholarsjourney661 2 года назад +240

    This may not be the episode for me to watch while I'm eating....

    • @yeah8598
      @yeah8598 2 года назад +17

      I am watching while eating lol

    • @glenngriffon8032
      @glenngriffon8032 2 года назад +14

      as a rule i never eat while watching scishow

    • @Annathroy
      @Annathroy 2 года назад +5

      Or while being on the toilet

    • @thescholarsjourney661
      @thescholarsjourney661 2 года назад +4

      @@yeah8598 congratulations on having a stronger stomach than me

    • @creationfied
      @creationfied 2 года назад +3

      @@yeah8598 same lol

  • @prapanthebachelorette6803
    @prapanthebachelorette6803 2 года назад +63

    Hank: Worms, don’t google it. It’s gross 🤢
    Me: Well…. Studying healthcare in tropical zone makes that inevitable for me 🤣🤣🤣🤣

  • @stevie-ray2020
    @stevie-ray2020 2 года назад +153

    Just accept that you're the host, & you have one helluva party inside!

    • @abdouaboud7490
      @abdouaboud7490 2 года назад +4

      @ayy lmao remind of that one episode of adventure time where a giant has an army of bears living and partying inside his tummy

    • @tyson6762
      @tyson6762 2 года назад +4

      @ayy lmao You just unlocked a memory

    • @peggedyourdad9560
      @peggedyourdad9560 2 года назад +1

      @@tyson6762 Same here.

    • @KatieDeGo
      @KatieDeGo 2 года назад

      Gives a whole new meaning to "Be a new host!"

  • @robertabarnhart6240
    @robertabarnhart6240 Год назад +11

    Interesting tidbit I learned in bio class: in areas where botflies are common, cuckoo eggs don't have to be so similar to the host bird eggs. The reason is that cuckoo chicks really love botfly larvae, so they keep their stepsiblings from getting blinded by botflies. So the host parents have an incentive to keep them around. Of course, it's not a conscious choice, just instinct.

    • @gavinrobinson8925
      @gavinrobinson8925 Год назад +3

      finaly! 1 good thing about cuckoo birds, i hate them slightly less now.

  • @hannah2818
    @hannah2818 2 года назад +199

    At my last job my boss started getting colonics and was convinced she had parasites that would need multiple colonics… could you do an episode talking about the pseudoscience that goes into colonics and misdiagnosing normal changes in our poop as parasites?

    • @olenhol2przez4
      @olenhol2przez4 2 года назад +3

      Its hard to be under idiots like these... I wouldnt be able to do it for long

    • @joerionis5902
      @joerionis5902 2 года назад +3

      I think Professor Dave is the person you need to ask

    • @Jukajobs
      @Jukajobs 2 года назад +11

      fear of parasites that aren't there are used to promote sooo much pseudoscience, that example is one of many. the whole thing with using bleach to "cure autism", for example, is connected to that. Miracle Mineral Supplements and other similar companies and people claim that autism is caused by parasites and that their products can help you get rid of them. after you take them for a while (or, most commonly, give them to your child), you might see weird little things coming out in your poop, but those things are not worms, they're parts of your intestinal lining that is being damaged severely by ingesting a type of bleach. and more recently there's been Black Oxygen Organics claiming that you're full of parasites and that the way to make it better is to.... eat some soil. some super fancy and very expensive soil with certain special nutrients in it. or to put it in your bath or something like that, according to them. which seems less dangerous than taking bleach, but it's still bad.

    • @kristelbrok998
      @kristelbrok998 2 года назад +1

      Sounds like BOO 😅

    • @caroljo420
      @caroljo420 2 года назад

      Sounds interesting!

  • @Archronis
    @Archronis 2 года назад +22

    Surprised Hank didn't mention the Rat Lungworm. Probably the scariest parasite out there.

    • @laanaalove
      @laanaalove Год назад +3

      Imo Nigeria floweri or w.e is pretty scary, but I'd rather have that over rat lungworm

    • @Khoros-Mythos
      @Khoros-Mythos 7 месяцев назад +2

      "lungworm" yep, definitely not googling that

  • @mr.mentesh8130
    @mr.mentesh8130 2 года назад +37

    "These little b*stards" love Hank, absolute legend and my favourite 🤣😁

  • @pabrown69
    @pabrown69 2 года назад +21

    I contracted toxoplasmosis when I was 11. It nearly blinded me in one eye - my vision in that eye is 20/200. I’ve sometimes wondered if I was left with any other behavioral changes.

    • @laanaalove
      @laanaalove Год назад +1

      What did you notice in terms of visual changes

  • @EdsonR13
    @EdsonR13 2 года назад +23

    So that Greys anatomy episode with the guy infecting himself with worms to treat his asthma was actually rooted in some real science

    • @suzannebrown2505
      @suzannebrown2505 Месяц назад +1

      The only meds I treat my allergies and asthma with are pills and inhalers. No worms. EVER! 🤢😰

  • @damianGray
    @damianGray 2 года назад +20

    "Wouldn't you just love to spoon a cat?"
    The forbidden spoons

  • @hannahlistento100EAT
    @hannahlistento100EAT 2 года назад +47

    Ankle, anus, and abdomen, parasites are more viscerally unappealing

  • @injunsun
    @injunsun 2 года назад +12

    Giardia may have cured ny demographia. I was afflicted from age 13 till about 29, when I caught giardia. My most extreme form of demographia went away, then I was treated for giardiasis, and it never returned, while my sister was afflicted from 3 till her death at 47. Mine was so severe, vibrations made
    my skin swell. You could write your name on me, and in minutes, it looked like The Exorcist. An ice cube would bring a wealt, while winter cold would make my extremities swell solid. A sunlamp would bring body wide wealts. I don't know if having giardia saved me from all that, but it seems likely, as this was all an Ig-E overreaction.

  • @katyowens3119
    @katyowens3119 2 года назад +18

    Shout out to This Podcast Will Kill You for covering each of the parasites mentioned by 2012 Hank! Great show. If you like this channel, you’ll love that podcast.

  • @laanaalove
    @laanaalove Год назад +17

    I have what I suspect to potentially be delusional parasitosis (or perhaps some form of parasite related health anxiety/ ocd) yet I find myself endlessly consuming like university level parasitology material bc I tell myself that knowledge is power (I should seriously stop) but thank you for the trigger warning ❤

    • @laanaalove
      @laanaalove Год назад +2

      Or maybe just maybe I do in fact have a parasitic infestation of some sort and all these years I've been correct

    • @laanaalove
      @laanaalove Год назад +2

      Haha jk... unless??

    • @Destiny-ig2fs
      @Destiny-ig2fs Месяц назад +1

      Unless😅

    • @laanaalove
      @laanaalove Месяц назад

      @@Destiny-ig2fs 👀🥺

  • @anything4validation
    @anything4validation 2 года назад +7

    having been on a long-term course of extreme antibiotics, stomach bacteria is definitely important and it can be hard to eat or even keep food down without them.

  • @dillingerjackson39
    @dillingerjackson39 2 года назад +53

    Would you guys be able to do a video on ‘Dermatomyositis’? My wife is afflicted with this at 25, and while I’ve done my own research, I’d like to hear a more educated breakdown of the disease.

    • @ryanblack2986
      @ryanblack2986 2 года назад +11

      I dont want to scare or worry you but mt Aunt died from dermatomyositis in her early 40s. It took a long time for them to diagnose it because its so rare. I was only a kid then in the mid 90s, but I remember how swollen she was, especially her face. They had her on lots of Prednisone. Its a strange thing since it can go away completely or cause a lot of dis-ease.

    • @dillingerjackson39
      @dillingerjackson39 2 года назад +10

      @@ryanblack2986 yes, they have her on lots of steroids, she's not swollen but she does have rash and muscle weakness. Definitely deal with things day to day but I'm just trying to learn as much as I can about it.

    • @laanaalove
      @laanaalove Год назад +1

      Has nothing to do w parasites so worry not! It's a rare agressive type of inflammatory autoimmune disease that attacks primarily muscles and also has a characteristic red rash over the knuckles called gottrons papules as well as the eyelids and any extensor surfaces (elbow, knee ect) it is linked to a high-end risk of certain cancers as well. The cause of this is unknown. Hopefully ur wife is doing well!

    • @dillingerjackson39
      @dillingerjackson39 Год назад +4

      @@laanaalove I am aware, at the time it was on my mind and thought I’d ask. She is doing okay at the moment just lots of medication. Some get the rash some get the muscle weakness, she got both. Overall much better now than when it began.

    • @laanaalove
      @laanaalove Год назад +1

      @@dillingerjackson39 I'm very glad to hear

  • @joseMgarcia0711
    @joseMgarcia0711 2 года назад +29

    Those 4 categories Hank says are redundant. There should only be one. Parasites are all "freaky" stuff. I'm fascinated and horrified at the same time by them.

  • @ivytarablair
    @ivytarablair 2 года назад +10

    aww yay!! 2012 Hank is just as fun to watch as 2021 Hank :D I love seeing presenters/artists at different times in their career, and I love earlier work just as much as later work, they all have their charms ;)

  • @joec8750
    @joec8750 2 года назад +5

    I some how find it strange yet perfectly natural to see old hank, the way he appeared when I first started learning from him when I lived it Maine. I'm sitting here in Bozeman Montana ATM and wow ! Hanks come along way yet is still eer..was , in 2012 pretty frigging awesome

  • @benmcreynolds8581
    @benmcreynolds8581 2 года назад +4

    I Love and am Equally freaked out by parasites but I'm so facinated to learn and study all about them. I hope one day we learn how to help anyone infected by any given parasites that we currently have trouble treating a diagnosing.

  • @fghsgh
    @fghsgh 2 года назад +17

    And another Compilation in the title! Thanks guys!

    • @ZeroAnalogy
      @ZeroAnalogy 2 года назад +4

      Yes, not always disclosed often eliciting the ire of the viewing public.

  • @kimberlypatton205
    @kimberlypatton205 Год назад +3

    The most horrific parasite story I think I’ve ever heard of was of a young man in Australia who( as a joke among his friends) was dared, or made a bet somewhat with his friend group one day that he would eat a garden snail or garden slug. Within a very short time he was infested with a parasite present and common in them that destroyed his brain. It was so senseless, mind-blowing and tragic…. It pays to pay attention to any pathways and orifices that lead into your body and be mindful of all microscopic or native things in nature.

    • @kevinmcdowell9074
      @kevinmcdowell9074 10 месяцев назад +2

      Its called Rat Lungworm Disease. And the boy slipped into a coma from the brain eating amoeba I believe it was anyway he died a slow and painful death. Very tragic, my heart breaks to know it was so innocent yet so painful and ultimately fatal.

  • @Annathroy
    @Annathroy 2 года назад +56

    There really aren't ten times more bacteria cells than you cells in, well, you.
    This has been disproved times and times again.
    The original cited research was based on mostly guts (and bacteria in guts) where the 10-1 ratio might very well be true, however in general its more like 50-50

    • @Annathroy
      @Annathroy 2 года назад +13

      Also, no parasite is capable (or fish for that matter) of swimming or flying or whatever in your urethra. This was an urban legend

    • @lealta1481
      @lealta1481 2 года назад +3

      Thank you. I was gonna post this

    • @Cr3zant
      @Cr3zant 2 года назад +3

      @@Annathroy Uh yeah, they literally said immediately after that new information was found since the 2012 video that showed it was incredibly unlikely for the fish to get in the urethra.

    • @Cr3zant
      @Cr3zant 2 года назад +6

      @@tron-8140 Because it's a compilation of themed videos from the channel's history. The rest of the video was still fine, and they stated immediately after that that one segment was wrong. Should people stop sharing Einstein's papers of relativity just because Hawking disproved like 2 statements in it?

    • @Smithington_
      @Smithington_ 2 года назад +1

      @@Cr3zant They could have easily edited it out.

  • @liviawong6928
    @liviawong6928 Год назад +5

    Tapeworms are horrid. I have 2 cats and they've both had tapeworm at least 2 times. Though, we thankfully found out almost right away and were able to get rid of them with just some tapeworm tablet medicine

  • @gtbkts
    @gtbkts 2 года назад +13

    This is the compilation we didnt know we needed.

    • @stevie-ray2020
      @stevie-ray2020 2 года назад +2

      Just accept that you're the host, & you have one helluva party inside!

  • @brianhenrichs9409
    @brianhenrichs9409 2 года назад +3

    Yay!! Thank you for using "compilation" in the title again. I know it's probably unrelated to my previous comments but I feel very listened to. This is the best channel on youtube by far.

  • @angelachouinard4581
    @angelachouinard4581 Год назад +2

    The poisons lured me in, the parasites got me hooked and I can't wait for the toxins to knock me out. Just subscribed and having so much fun! Why didn't the algorithm find you for me sooner?

  • @PlumBerryDelicious
    @PlumBerryDelicious 6 месяцев назад +2

    My career revolves around fecal microbiome transplants and their effects on melanoma! Love this video!!

  • @maximilianosalvador9559
    @maximilianosalvador9559 2 года назад +31

    Day 58 of asking for the return of Scishow Quizshow

  • @tired1923
    @tired1923 Год назад +3

    my first thought hearing about the cat parasite possibly influencing our love for them was “aw that’s fine they’re cute I’ll let them, as a treat”. maybe those scientists really are onto something

  • @patriciarussell8450
    @patriciarussell8450 2 года назад +1

    Love watching all these programs learn more and more everyday, thanks Hank for sharing and keeping us informed.☺

  • @Joss0051
    @Joss0051 2 года назад +1

    I knew a lot of this but there were some parts I did not, so thanks, and especial thanks for all the effort and research to put this together in such a neat way. Kudos.

  • @darkydoom
    @darkydoom 2 года назад +27

    Try dealing with a scabies outbreak in a health care facility. The paranoia is real!

    • @romeoslover817
      @romeoslover817 2 года назад +4

      my mom experienced that nightmare in a nursing home. of course, she gets discharged and brings the buggers home.

    • @darkydoom
      @darkydoom 2 года назад +3

      @@romeoslover817 aahh damn

  • @T1Oracle
    @T1Oracle 2 года назад +4

    Ah Toxoplasmosis! The reason why the internet is obsessed with cats!
    Toxoplasma Gondii: "Pet them filthy humans!"

  • @WormholeJim
    @WormholeJim 2 года назад +1

    14:56 Feeling my eye brows creep upwards on my head as my eyes widen and my mouth expels air in the sound of a drawn out "no waaaayy" even as laughter starts bubbling up from my midsection, then 15:02 comes around and everything is just horrible again.

  • @potatonope9774
    @potatonope9774 2 года назад +2

    "We're our own biome!" He sounds so happy :)

  • @doha057
    @doha057 2 года назад +5

    Thank you guys, today I learned a great deal of knowledge which I could easily live without, thanks for the nightmares, but joking aside, glad to see such a long episode, great video.

  • @Neloish
    @Neloish 2 года назад +16

    This make me glad that the ivermectin craze is happing, at least they won't be wormy.

    • @injunsun
      @injunsun 2 года назад +10

      It works for bedbugs, if someone takes the human form at human doseage, which is 0.2mg per ten pounds bodyweight per day. I used it a few years ago, 3mg every 5 days, for three months, while heat treating the bed, and got rid of them, after a miserable 7 year infestation. My doctor was skeptical, but this _is_ a parasite, and I had tried literally everything on the market, except throwing everything away and burning my house down. Meanwhile, covidiots are their own parasites. I'm fully vaxxed, about to get my booster, masked when necessary, because I'm not an a**hole.

    • @Neloish
      @Neloish 2 года назад +2

      @@injunsun Diatomaceous earth is the solution to bed bugs.

    • @levitschetter5288
      @levitschetter5288 2 года назад +2

      The only cure is holy fire to burn the infidels

    • @SkDiggy
      @SkDiggy 2 года назад +5

      @@injunsun wait until they start ingesting parasites that allegedly eat viruses 😂

    • @injunsun
      @injunsun 2 года назад +2

      @@SkDiggy Shiz... I'm about ready to ingest a damn tapeworm, just to get rid of these last phokin' 15 pounds (a stone). And when I'm back fitting into my 29" waist Levi's 501s, I know the precise medicine to take to shi.... er... cause that thing to leave my bowels. Lol!

  • @papertowelrack
    @papertowelrack 2 года назад +5

    They forgot the ultimate parasites: Embryos

  • @Lizablue0608
    @Lizablue0608 2 года назад +9

    Can we appreciate the code word warning mamas? It’s brilliant. 🤔 These mama’s know their kids.

  • @saeedgnu
    @saeedgnu 2 года назад +4

    This is going to fuel my germaphobia! I already wash my hands 100 times a day, stay away from all animals, and every time my face itches I suspect it's face mites... I did not need to know all this info, but thanks anyway!

  • @jakoblarok
    @jakoblarok 2 года назад +5

    3:29 "It's not really affecting you in any way..."
    Unless it turns out to be true that such follicular mites play an important role in an allergy that can be causing rosacea flare-ups in certain humans, causing social ridicule and borderline persecution, in communities unfamiliar with this condition...

  • @FloozieOne
    @FloozieOne 2 года назад +6

    Actually, Toxoplasmosis doesn't say to a rat, "Look at the beautiful kitty. Wouldn't you like to snuggle up to it? Don't be afraid, it's just a nice friendly cat". The parasite is much trickier than that. Rats know the scent of cat pee and will avoid places that smell of it. They can even sometimes smell whatever few drops remain on the cat's fur after it pees. Naturally they will run away from this scent which is one reason cats have to sneak up on rats and then pounce. However, toxo makes the rats LOVE the smell of cat pee and they will run towards it and even seek it our thereby giving the cat a nice tasty treat and continuing their life cycle. I don't know what category of parasitism this comes under but probably the mutualistic kind since both the cat and the toxo benefit from the arrangement.

  • @northwestpassage6234
    @northwestpassage6234 2 года назад +2

    This was a great choice for an educational breakfast video. Unfortunately I didn’t get too far through my breakfast before losing my appetite and being convinced I didn’t cook the meat well enough.

  • @1234j
    @1234j 2 года назад +3

    5:16 ''maRlaria': whaaaat??! (Being pedantic here just to distract myself from all the information contained herein, plus all the creatures living rent-free in me.)

  • @FightCain
    @FightCain 2 года назад +3

    God I hate worms. I’m more afraid of stuff that I can’t see, especially those that live inside you

    • @injunsun
      @injunsun 2 года назад +1

      They didn't even get into the fungi that take over brains, forcing some animals to surrender themselves to predators. That's usually ants, but the X-Files used that trope, and it was scary af.

  • @imlistening1137
    @imlistening1137 2 года назад +1

    I loved seeing Hank talk about creepy crawlers again! So funny, but yet, true!

  • @midgematic8659
    @midgematic8659 8 месяцев назад +2

    **jumps onto doctor’s table** Alright doc, *WORM ME*

  • @prodigalpriest
    @prodigalpriest Год назад +6

    I can tell you from experience that Toxoplasmosis can affect humans. I know because I had Toxoplasmosis in my mother's womb every time she ate raw hamburger meat in the form of steak tartare. She wasn't affected but my retinas wound up severely scarred because of it.
    I only have one functional eye that is nearsighted, and the other eye is like looking through a keyhole sideways so not usable.
    I've heard about other people who were completely blind due to Toxoplasmosis so I consider myself fortunate to have what sight I do.
    Never take what you have for granted. It's too easy to lose those things. God bless you all. 🙏♥️

  • @loveisinportant5570
    @loveisinportant5570 2 года назад +4

    I'm surprised the ten to one ratio of microorganisms and human cells was left in. I recall it being talked about not too long ago and how that figure has been blown out of proportion from a faulty report or something.

    • @ZoranRavic
      @ZoranRavic 2 года назад +2

      Yea, it seems ridiculous that there are 10 times more of them and yet most of them are in our gut.

  • @Cybernaut551
    @Cybernaut551 2 года назад

    This is the best friendly advice, yet!

  • @euniversitybangladesh710
    @euniversitybangladesh710 2 года назад

    Thanks for sharing.

  • @craigh5236
    @craigh5236 2 года назад +4

    That thing about the candiru is unconfirmed. There was only one case of that happening and that case is very unreliable.

  • @richard_d_bird
    @richard_d_bird 2 года назад +5

    category 5: relatives

    • @stevie-ray2020
      @stevie-ray2020 2 года назад +1

      No, they're category 6, category 5 are housemates!

  • @littlelilac2805
    @littlelilac2805 Год назад +1

    As someone with atopy (asthma, gerd, nasal polyps, hey fever, spring conjunctivitis, food allergy, metal allergy, cat allergy, occasional urticaria) with family history of hasimoto thyroiditis, celiac and autoimmune kidney disease.. *I want to know how to pay a parasite*

  • @Rabcup
    @Rabcup 2 года назад

    Thanks for doing the thing

  • @quintenwhyte6660
    @quintenwhyte6660 2 года назад +4

    "Parasite!?! Apologize!!"-Venom

  • @seriquerj
    @seriquerj 2 года назад +3

    I was about to mention the unlikeliness of the candiru mith

  • @jdrodriguez2283
    @jdrodriguez2283 2 года назад +1

    Yes ! it going on one month that I got rid of the three parasite all the wanted it place to live, beer, smokes , food and somebody to pay all bills. My life is moving forward with out them.

  • @iforgot8376
    @iforgot8376 2 года назад

    Thanks this is just what I needed...

  • @Dogtroll
    @Dogtroll 2 года назад +14

    Actually, that parasite that makes rats become attracted to cats could also help to explain cat hoarding.

    • @MadsterV
      @MadsterV 2 года назад +3

      this is what I want to know too, a missed opportunity by the toxoplasmosis study, they could have asked do you have/how many cats

    • @originalbillyspeed1
      @originalbillyspeed1 2 года назад

      The only way to properly test it would to infect someone with the parasite and then detrmine if it makes them like cats more. Very unlikely to happen.

    • @Dogtroll
      @Dogtroll 2 года назад +3

      @@originalbillyspeed1 another option could be to test someone who is already a cat hoarder and try and eliminate the parasites from their system and then see if they still have an interest in hoarding cats.

    • @originalbillyspeed1
      @originalbillyspeed1 2 года назад

      @@Dogtroll That wouldn't necessarily be conclusive. It's possible the parasite could cause permanent changes.

    • @Dogtroll
      @Dogtroll 2 года назад

      @@originalbillyspeed1 well ethically speaking if it's possible to get rid of the parasites then it might be more appropriate to infect someone with them see if it has an effect then cure them. Also, I was thinking that you might have to take into account relativity meaning if a person has never shown any interest in cats they're not likely to become a cat hoarder but they might be more likely to pet their neighbors cat, whereas if a person started out being fond of cats they could possibly be the ones that wind up being cat hoarders.

  • @rayhaanadam9520
    @rayhaanadam9520 2 года назад +4

    Thanks guys! I watch Sci show daily 😊

  • @JessieRed
    @JessieRed 9 месяцев назад

    I just had a dream about scishow lol so….parasitic worms it is!!! Love what you guys do!

  • @Koellenburg
    @Koellenburg Год назад

    Its funny to heaar Hank talking about Urethra ... has kind of a King of the Hill vibe in it :D

  • @ZeroAnalogy
    @ZeroAnalogy 2 года назад +5

    27:55 Helminths sound like hell mints. Either way, neither seem to be good for the body.

  • @PyroDesu
    @PyroDesu 2 года назад +14

    Okay, something that really bothers me here: parasitism is *specifically* when a symbiotic organism is harmful to its host. Parasites by definition cannot be neutral or beneficial for the host. Don't use the word "parasite" for commensalistic or mutualistic symbiotes!

  • @drewbabe
    @drewbabe 9 месяцев назад

    13:00 interesting fun fact for media enjoyers: Chainsaw Man (popular anime, highly recommend you check it or its manga out if even if you don't normally like anime) uses one of these snails for symbolism in its opening theme sequence!

  • @GuantaiN
    @GuantaiN 2 года назад +1

    Thanks! I'll be scratching myself for the whole week.

  • @conlon4332
    @conlon4332 Месяц назад +3

    Is anyone else really bothered by Hank keep calling bacteria animals? They're not even eukaryotes.

  • @zsombik3992
    @zsombik3992 2 года назад +6

    I miss 2012 Hank

  • @shootnado
    @shootnado 2 года назад +2

    Fun a fact that's absolutely unrelated to this video: I used to watch a lot of sci show back at a very depressing time of my life and so now when I hear the intro I get to feel that same sadness as before. So weird, why is that? XD

    • @RyunoOhi
      @RyunoOhi 24 дня назад

      Sounds like a classic Pavlovian response.

  • @rofinatheirin9929
    @rofinatheirin9929 2 года назад +1

    9:54 ah yes, the wasp and catfish-shaped cuckoo birds, the rarest of species~ 💖
    (Yes I know he was comparing them, but it sounds hilarious out of context 😂)

  • @heathroush5343
    @heathroush5343 2 года назад +7

    This was a great video to watch while eating dinner.

  • @prunabluepepper
    @prunabluepepper 2 года назад +10

    The parasite on the thumbnail needs googly eyes. 👀

  • @clydecraft5642
    @clydecraft5642 2 года назад +1

    I think i could have toxoplasmosis then, i live with too many cats and nothing short of a jumpscare even gets a start out of me, and everyone i know says i dont get scared normally, my friends were all getting high out in the dark and seeing shadows move because of the wind and my headlights while im sitting there still having fun

  • @abigailpena5950
    @abigailpena5950 2 года назад +1

    I mean, I've lived in the USA for my whole life (almost 20yrs) and I always had parasites when I was little, they were little white worms that infected my intestines and would come out you know where. Now idk why exactly, but when I'd get treatment they'd come back and it was like a cycle. Idk why it happened, but it did.

    • @runed0s86
      @runed0s86 2 года назад +2

      Sounds like pinworms

    • @juliabouzan1739
      @juliabouzan1739 Год назад

      one of my bros got them, probably from digging in the dirt and sucking his fingers, the eggs can be in the dirt. luckily treatment worked, our mom probably didnt let him did in the dirt after that. did you have a sandbox, did you suck your thumb or bite your nails?

  • @Oxnate
    @Oxnate 2 года назад +7

    Thank god for Ivermectin!

    • @injunsun
      @injunsun 2 года назад +2

      It works for bedbugs, when properly prescribed and taken, along with heat treating your bed.

  • @DaveSomething
    @DaveSomething 2 года назад +5

    I know a lot of parasites

  • @ronaldmorey3396
    @ronaldmorey3396 4 месяца назад

    I spent a day once studying parasites, after 6 hours straight of educational videos on parasites I got hungry. I had bought a few days previously a small can of crab meat to try out. Turns out those little tins of crab meat look remarkably like nematodes, and if you have been watching 6 hours of videos on parasitic worms the meat will look like its moving. If I concentrated really hard I could tell it wasnt moving, but I couldn't tell for sure which view was real so I ate something else.

  • @jeremyjones8663
    @jeremyjones8663 9 месяцев назад

    To host a SciShow, I laughed out loud!!

  • @adarshkamoda9183
    @adarshkamoda9183 2 года назад +3

    I think I'm gonna begin a ritual for thanking god for putting me in New Zealand where most of this nonsense doesn't affect me.

    • @Kaitybardot
      @Kaitybardot 2 года назад +1

      From my vantage point as an American, I'd say you probably have A LOT of things to be thankful for based on your location.

    • @adarshkamoda9183
      @adarshkamoda9183 2 года назад

      @@Kaitybardot Seems fair.
      As an American, what problems plague you, miss? I am curious.

  • @brittneypearson9022
    @brittneypearson9022 2 года назад +3

    What bothers me is how little people enjoy learning. And because of that.. when I was sold sick puppies with mites and I caught them (evolved to be transmittable to humans also know as scabies).. I was treated like a criminal and a nasty person by everyone once they found out about it having occurred. It really gets under my skin.

  • @mr.tarkovish2587
    @mr.tarkovish2587 7 месяцев назад

    YESSS! I had that happened when my synodontis catfish bred and my Copadichromis borleyi mouth brood them and when they came out I was scratching my head wondering if I had just created the weirdest hybrid fish 🤣🤣🤣

  • @angelotorrelli7478
    @angelotorrelli7478 9 месяцев назад

    You could also talk about the Cysticercus that makes cysts in your brain if you eat contaminated pig meat (very common in developping countries).

  • @faithdorey5919
    @faithdorey5919 2 года назад +4

    What about the guy that lived with like a dozen parasites and didnt do anything about it because he liked them

    • @sunsetgirl109
      @sunsetgirl109 2 года назад +1

      Wait Wut??

    • @faithdorey5919
      @faithdorey5919 2 года назад

      @@sunsetgirl109 heard the story aged ago but there was a guy that decided they are living and deserve to live so he allowed his body to be a host for a bunch of whatever he could catch. Kinda the pokemon of parasites, mind you I cant remember any that were very dangerous but he had like lice, hook worms, tapeworm, pin worms and more

    • @sadcat2434
      @sadcat2434 2 года назад

      Did the parasite live inside him? Man that's f*cked up

    • @ZeroAnalogy
      @ZeroAnalogy 2 года назад +1

      Lawyers? Can live with 'em, but can't kill 'em.

    • @misterflibble6601
      @misterflibble6601 2 года назад +1

      Sounds like an urban legend

  • @X51Blazer
    @X51Blazer 2 года назад +3

    Man, I knew my mind has been ruined by hentai when I saw that thumbnail.

  • @phhdvm
    @phhdvm 2 года назад

    Holy cow! this is the first time I've sen "current" Hank. I recognized the voice and style...but wow he looks different

  • @Evistopheles
    @Evistopheles Год назад

    I wonder how they find out that you have toxoplasmosis. Blood tests? I think I might like cats too much with how I basically start crying with joy every time I see one or pat the little heads of mine.