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

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  • čas přidán 28. 06. 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...

Komentáře • 996

  • @listennui
    @listennui Před 2 lety +1154

    No sir, this tapeworm is my antihistamine support animal

  • @SerunaXI
    @SerunaXI Před 2 lety +491

    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 Před 2 lety +48

      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 Před 2 lety +28

      @@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 Před 2 lety +14

      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 Před 2 lety +14

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

    • @Skag_Sisyphus
      @Skag_Sisyphus Před 2 lety +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.

  • @pentalarclikesit822
    @pentalarclikesit822 Před 2 lety +168

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

    • @abdouaboud7490
      @abdouaboud7490 Před 2 lety +13

      58484 if you like swimming in pounds or lakes

    • @korioa
      @korioa Před 2 lety +6

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

    • @abdouaboud7490
      @abdouaboud7490 Před 2 lety +3

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

    • @lazertroll702
      @lazertroll702 Před 2 lety +1

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

    • @opalumbre
      @opalumbre Před 2 lety +1

      It was a joke

  • @joshuasalem5022
    @joshuasalem5022 Před 2 lety +452

    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 Před 2 lety +27

      finally i thought i was tripping

    • @nathanseals6009
      @nathanseals6009 Před 2 lety +11

      Cmon scishow. Do better

    • @roastedtoast4015
      @roastedtoast4015 Před 2 lety +46

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

    • @fastjerk
      @fastjerk Před 2 lety +32

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

    • @theentertaner
      @theentertaner Před 2 lety +4

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

  • @baranorak4080
    @baranorak4080 Před 2 lety +544

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

  • @stkygrnz
    @stkygrnz Před 2 lety +1479

    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 Před 2 lety +19

      What, you don't notice all the cuts?

    • @nadapenny8592
      @nadapenny8592 Před 2 lety +41

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

    • @stuck_around
      @stuck_around Před 2 lety +65

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

    • @HotelPapa100
      @HotelPapa100 Před 2 lety +15

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

    • @Usernoobmaster
      @Usernoobmaster Před 2 lety +9

      That's what made him unique

  • @mistingwolf
    @mistingwolf Před 2 lety +215

    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 Před 2 lety +18

      😭 😰😭😱😭😫😭

    • @peggedyourdad9560
      @peggedyourdad9560 Před 2 lety +34

      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 Před 2 lety +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 Před 2 lety +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 Před 2 lety +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

  • @thescholarsjourney661
    @thescholarsjourney661 Před 2 lety +242

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

  • @renkio
    @renkio Před 2 lety +103

    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".

  • @stevie-ray2020
    @stevie-ray2020 Před 2 lety +154

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

    • @abdouaboud7490
      @abdouaboud7490 Před 2 lety +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 Před 2 lety +4

      @ayy lmao You just unlocked a memory

    • @peggedyourdad9560
      @peggedyourdad9560 Před 2 lety +1

      @@tyson6762 Same here.

    • @KatieDeGo
      @KatieDeGo Před 2 lety

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

  • @SuLokify
    @SuLokify Před 2 lety +120

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

  • @ehjones
    @ehjones Před 2 lety +122

    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 Před 2 lety +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 Před 2 lety +10

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

    • @samhg3658
      @samhg3658 Před 2 lety +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 Před rokem +3

      @@saritalevinthal3455 How did you get it diagnosed?

    • @Robohead-z6z
      @Robohead-z6z Před rokem +2

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

  • @yamushu725
    @yamushu725 Před 2 lety +433

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

    • @gtbkts
      @gtbkts Před 2 lety +2

      Lmao

    • @danwic
      @danwic Před 2 lety +2

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

  • @prapanthebachelorette6803
    @prapanthebachelorette6803 Před 2 lety +63

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

  • @alphatonic1481
    @alphatonic1481 Před 2 lety +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 Před 2 lety +2

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

    • @Hi_Im_Akward
      @Hi_Im_Akward Před 2 lety +27

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

    • @robertabarnhart6240
      @robertabarnhart6240 Před rokem +7

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

    • @babitas5401
      @babitas5401 Před 11 měsíci +2

      Yes sometimes when you eat unhealthy food you get it

    • @lobban2
      @lobban2 Před 8 měsíci +2

      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.

  • @hannah2818
    @hannah2818 Před 2 lety +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 Před 2 lety +3

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

    • @joerionis5902
      @joerionis5902 Před 2 lety +3

      I think Professor Dave is the person you need to ask

    • @Jukajobs
      @Jukajobs Před 2 lety +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 Před 2 lety +1

      Sounds like BOO 😅

    • @caroljo420
      @caroljo420 Před 2 lety

      Sounds interesting!

  • @robertabarnhart6240
    @robertabarnhart6240 Před rokem +13

    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 Před rokem +3

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

  • @Archronis
    @Archronis Před 2 lety +22

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

    • @laanaalove
      @laanaalove Před rokem +3

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

    • @Khoros-Mythos
      @Khoros-Mythos Před 8 měsíci +2

      "lungworm" yep, definitely not googling that

  • @hannahlistento100EAT
    @hannahlistento100EAT Před 2 lety +47

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

  • @EdsonR13
    @EdsonR13 Před 2 lety +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 Před 2 měsíci +1

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

  • @mr.mentesh8130
    @mr.mentesh8130 Před 2 lety +37

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

  • @damianGray
    @damianGray Před 2 lety +20

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

  • @pabrown69
    @pabrown69 Před 2 lety +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 Před rokem +1

      What did you notice in terms of visual changes

  • @injunsun
    @injunsun Před 2 lety +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 Před 2 lety +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 Před rokem +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 Před rokem +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 Před rokem +2

      Haha jk... unless??

    • @Destiny-ig2fs
      @Destiny-ig2fs Před 2 měsíci +1

      Unless😅

    • @laanaalove
      @laanaalove Před 2 měsíci

      @@Destiny-ig2fs 👀🥺

  • @anything4validation
    @anything4validation Před 2 lety +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 Před 2 lety +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 Před 2 lety +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 Před 2 lety +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 Před rokem +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 Před rokem +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 Před rokem +1

      @@dillingerjackson39 I'm very glad to hear

  • @gtbkts
    @gtbkts Před 2 lety +13

    This is the compilation we didnt know we needed.

    • @stevie-ray2020
      @stevie-ray2020 Před 2 lety +2

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

  • @fghsgh
    @fghsgh Před 2 lety +17

    And another Compilation in the title! Thanks guys!

    • @ZeroAnalogy
      @ZeroAnalogy Před 2 lety +4

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

  • @ivytarablair
    @ivytarablair Před 2 lety +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 ;)

  • @maximilianosalvador9559
    @maximilianosalvador9559 Před 2 lety +31

    Day 58 of asking for the return of Scishow Quizshow

  • @papertowelrack
    @papertowelrack Před 2 lety +5

    They forgot the ultimate parasites: Embryos

  • @benmcreynolds8581
    @benmcreynolds8581 Před 2 lety +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.

  • @kimberlypatton205
    @kimberlypatton205 Před rokem +4

    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 Před 11 měsíci +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.

  • @joec8750
    @joec8750 Před 2 lety +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

  • @joseMgarcia0711
    @joseMgarcia0711 Před 2 lety +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.

  • @Annathroy
    @Annathroy Před 2 lety +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 Před 2 lety +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 Před 2 lety +3

      Thank you. I was gonna post this

    • @Cr3zant
      @Cr3zant Před 2 lety +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 Před 2 lety +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_ Před 2 lety +1

      @@Cr3zant They could have easily edited it out.

  • @PlumBerryDelicious
    @PlumBerryDelicious Před 7 měsíci +2

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

  • @liviawong6928
    @liviawong6928 Před rokem +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

  • @brianhenrichs9409
    @brianhenrichs9409 Před 2 lety +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.

  • @tired1923
    @tired1923 Před rokem +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

  • @potatonope9774
    @potatonope9774 Před 2 lety +2

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

  • @angelachouinard4581
    @angelachouinard4581 Před rokem +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?

  • @darkydoom
    @darkydoom Před 2 lety +27

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

    • @romeoslover817
      @romeoslover817 Před 2 lety +4

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

    • @darkydoom
      @darkydoom Před 2 lety +3

      @@romeoslover817 aahh damn

  • @Lizablue0608
    @Lizablue0608 Před 2 lety +9

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

  • @patriciarussell8450
    @patriciarussell8450 Před 2 lety +1

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

  • @midgematic8659
    @midgematic8659 Před 9 měsíci +2

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

  • @Neloish
    @Neloish Před 2 lety +16

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

    • @injunsun
      @injunsun Před 2 lety +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 Před 2 lety +2

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

    • @levitschetter5288
      @levitschetter5288 Před 2 lety +2

      The only cure is holy fire to burn the infidels

    • @SkDiggy
      @SkDiggy Před 2 lety +5

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

    • @injunsun
      @injunsun Před 2 lety +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!

  • @richard_d_bird
    @richard_d_bird Před 2 lety +5

    category 5: relatives

    • @stevie-ray2020
      @stevie-ray2020 Před 2 lety +1

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

  • @Joss0051
    @Joss0051 Před 2 lety +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.

  • @T1Oracle
    @T1Oracle Před 2 lety +4

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

  • @saeedgnu
    @saeedgnu Před 2 lety +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!

  • @quintenwhyte6660
    @quintenwhyte6660 Před 2 lety +4

    "Parasite!?! Apologize!!"-Venom

  • @imlistening1137
    @imlistening1137 Před 2 lety +1

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

  • @northwestpassage6234
    @northwestpassage6234 Před 2 lety +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.

  • @loveisinportant5570
    @loveisinportant5570 Před 2 lety +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 Před 2 lety +2

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

  • @FloozieOne
    @FloozieOne Před 2 lety +7

    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.

  • @WormholeJim
    @WormholeJim Před 2 lety +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.

  • @Cybernaut551
    @Cybernaut551 Před 2 lety

    This is the best friendly advice, yet!

  • @Dogtroll
    @Dogtroll Před 2 lety +14

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

    • @MadsterV
      @MadsterV Před 2 lety +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 Před 2 lety

      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 Před 2 lety +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 Před 2 lety

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

    • @Dogtroll
      @Dogtroll Před 2 lety

      @@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.

  • @jakoblarok
    @jakoblarok Před 2 lety +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...

  • @Rabcup
    @Rabcup Před 2 lety

    Thanks for doing the thing

  • @doha057
    @doha057 Před 2 lety +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.

  • @seriquerj
    @seriquerj Před 2 lety +3

    I was about to mention the unlikeliness of the candiru mith

  • @FightCain
    @FightCain Před 2 lety +3

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

    • @injunsun
      @injunsun Před 2 lety +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.

  • @GuantaiN
    @GuantaiN Před 2 lety +1

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

  • @iforgot8376
    @iforgot8376 Před 2 lety

    Thanks this is just what I needed...

  • @craigh5236
    @craigh5236 Před 2 lety +4

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

  • @1234j
    @1234j Před 2 lety +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.)

  • @euniversitybangladesh710

    Thanks for sharing.

  • @zsombik3992
    @zsombik3992 Před 2 lety +6

    I miss 2012 Hank

  • @prunabluepepper
    @prunabluepepper Před 2 lety +10

    The parasite on the thumbnail needs googly eyes. 👀

  • @prodigalpriest
    @prodigalpriest Před rokem +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. 🙏♥️

  • @JessieRed
    @JessieRed Před 10 měsíci

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

  • @jeremyjones8663
    @jeremyjones8663 Před 10 měsíci

    To host a SciShow, I laughed out loud!!

  • @rayhaanadam9520
    @rayhaanadam9520 Před 2 lety +4

    Thanks guys! I watch Sci show daily 😊

  • @DaveSomething
    @DaveSomething Před 2 lety +5

    I know a lot of parasites

  • @shootnado
    @shootnado Před 2 lety +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 Před měsícem

      Sounds like a classic Pavlovian response.

  • @osmia
    @osmia Před 2 lety

    Thanks for including "compilation" in the title

  • @ZeroAnalogy
    @ZeroAnalogy Před 2 lety +5

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

  • @heathroush5343
    @heathroush5343 Před 2 lety +7

    This was a great video to watch while eating dinner.

  • @nataliekennedy4646
    @nataliekennedy4646 Před 2 lety

    I have shuffled from that parasite theory before

  • @susanbriggins5915
    @susanbriggins5915 Před 2 lety

    This is making my brain crawl

  • @conlon4332
    @conlon4332 Před 2 měsíci +3

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

  • @Oxnate
    @Oxnate Před 2 lety +7

    Thank god for Ivermectin!

    • @injunsun
      @injunsun Před 2 lety +2

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

  • @jdrodriguez2283
    @jdrodriguez2283 Před 2 lety +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.

  • @clydecraft5642
    @clydecraft5642 Před 2 lety +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

  • @PyroDesu
    @PyroDesu Před 2 lety +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!

  • @adarshkamoda9183
    @adarshkamoda9183 Před 2 lety +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 Před 2 lety +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 Před 2 lety

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

  • @maureensurdez7841
    @maureensurdez7841 Před rokem

    Very Eeeeuuu, but ALSO very informative!

  • @rofinatheirin9929
    @rofinatheirin9929 Před 2 lety +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 😂)

  • @akumaking1
    @akumaking1 Před 2 lety +6

    You forgot to mention the parasites in DC.

    • @stevie-ray2020
      @stevie-ray2020 Před 2 lety

      They're in all governments, and in all countries!

  • @Werd2jaH
    @Werd2jaH Před 2 lety +5

    I wonder if they tested for t. gondii in fossilized saber tooth tiger poop to see if we were the ancient rats to those big cats in the life cycle of the parasite🤔

  • @nitzan3782
    @nitzan3782 Před 2 lety +1

    So my recurrent pinworm infections stopped me from developing childhood allergies?

  • @Koellenburg
    @Koellenburg Před 2 lety

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

  • @Annathroy
    @Annathroy Před 2 lety +5

    Sounds like a good name for a movie or something

  • @faithdorey5919
    @faithdorey5919 Před 2 lety +4

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

    • @sunsetgirl109
      @sunsetgirl109 Před 2 lety +1

      Wait Wut??

    • @faithdorey5919
      @faithdorey5919 Před 2 lety

      @@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 Před 2 lety

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

    • @ZeroAnalogy
      @ZeroAnalogy Před 2 lety +1

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

    • @misterflibble6601
      @misterflibble6601 Před 2 lety +1

      Sounds like an urban legend

  • @phhdvm
    @phhdvm Před 2 lety

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

  • @melethalewis9315
    @melethalewis9315 Před 2 lety

    This happened when we first discovered it in the 1971. And it gave us a better way to understand about our bodies and minds.😱😍