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7 Organs You Could Totally Live Without

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Most people know that they don't need their appendix, but what other organs can humans live without? Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلطا الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://hemifoundation.homestead.com/facts.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4729844/ http://www.slate.com/articles/news_and_politics/explainer/2013/03/pope_francis_has_only_one_lung_is_that_a_problem.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3472481/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC64801/ https://www.niddk.nih.gov/health-information/digestive-diseases/digestive-system-how-it-works https://www.nostomachforcancer.org/about/life-without-a-stomach/gastrectomy https://www.nhs.uk/conditions/gastrectomy/risks/ https://www.merckmanuals.com/home/blood-disorders/spleen-disorders/overview-of-the-spleen https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5605342/ https://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0072577/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2701258/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5602614/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1358332/ https://www.niddk.nih.gov/health-information/digestive-diseases/gallstones/definition-facts http://www.americanjournalofsurgery.com/article/0002-9610(76)90295-6/abstract https://www.kidney.org/kidneydisease/howkidneyswrk#howis https://www.niddk.nih.gov/health-information/kidney-disease/kidney-failure/kidney-transplant https://www.sciencedaily.com/releases/2015/05/150527124736.htm Images: http://www.thinkstockphotos.com/image/stock-photo-x-ray-of-brain-in-skull/dv385010 http://www.thinkstockphotos.com/image/stock-photo-3d-illustration-of-lungs-medical-concept/639399418 https://en.wikipedia.org/wiki/File:PneumonectomyXray.PNG http://www.thinkstockphotos.com/image/stock-photo-3d-illustration-of-stomach/519081448 http://www.thinkstockphotos.com/image/stock-photo-human-spleen-anatomy/872739182 http://www.thinkstockphotos.com/image/stock-photo-3d-illustration-of-liver/524388994 https://en.wikipedia.org/wiki/File:Laparoscopic_Cholecystectomy_Incisions,_1_Week_Old.jpg http://www.thinkstockphotos.com/image/stock-photo-3d-illustration-of-urinary-system/524387736
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Text Comments (2531)
aris oreta (6 hours ago)
all I know Is I can live without my foreskin
Paulo Gomes (18 hours ago)
Anyone know the price of 65% of a liver in the black market
Sara Ringer (19 hours ago)
I was almost certain you'd mention your colon since you have UC but ya didn't!
enes akar (1 day ago)
It is the heart, mine got destroyed hours ago and I am still alive, eh ish...
cyberyoda0 (2 days ago)
Looks like his shirt can survive just fine without a button too.
Wulframm Rolf (2 days ago)
I'm terrified of organ removal. I can't get over it
A3 ashleigh (2 days ago)
My mom got her gallbladder removed and honestly...it doesn't make a difference in her life lol
Risto Pöhö (3 days ago)
I like the idea of half a brain being just about as good as a whole. And. A scary but interesting thought. When it becomes possible, what if the removed half would be transplanted into a braindead body.. Or even more confusingly, a crazy definitely illegal experiment. Take a half of two peoples brains, and swap the places. Right now it's not possible to connect them, but, but someday it'll be. ...Please somebody, write a creepypasta about that.....
Aaron Preston (4 days ago)
I was hoping this was a much older video... We now know that our appendix does serve a purpose. Shame on you guys. :(
Aaron Preston (4 days ago)
My bad, I posted this before watching. You can still live happily without an appendix! But it apparently provides beneficial flora to the gut after sickness, diarrhea, etc.
Well, how many weeks or days will it take for a liver to regenerate?
Princess YuBeace (9 days ago)
My grandpa was born with just a single kidney! At some point he needed serious surgery for something else, and the doctors were hestitant bc they were afraid the single kidney wouldn’t be enough to help the body go through it. But because his life was in danger, they decided to do it anyway. He survived that surgery and felt great afterwards!
Princess YuBeace (9 days ago)
I know about a singer with only one lung! She’s part of a trio of sisters named OG3NE (if i spelled it correctly that is) and their singing is absolutely beautiful, they can sing in harmony perfectly.
Kyle Miller (10 days ago)
AND it's a button down with the collar not buttoned down? I cant watch anymore. My add hurts.
Kyle Miller (10 days ago)
Is that shirt missing a button? Or is it made that way?
Thraazon 1976 (10 days ago)
Some politicans seemingly successfully live without a spine all their life. While others "successfully" life without a brain.... 😁
Pencil Chips (12 days ago)
So many organ puns in this comment section.
Cd-iLozytp (13 days ago)
8. A literal organ. Like the instrument.
TheGaming Carnotaurus (15 days ago)
I Have 1 Kidney!
Shay Whelan (16 days ago)
I've already dumped my appendix. I'm hard.
alice gray marks (16 days ago)
Missed a shirt button.
Suyono Yoyong (16 days ago)
He can also make video with 1 missing button
SkullHomie (16 days ago)
Wait wtf. You can sell your kidney and it will grow back? *Gets liver removed* *Sells it* *Becomes rich* *Gets all the pussies*
LexiColey MUA (18 days ago)
I have no kidneys so I do dialysis. Been on for 15 years now.
Lennin Karl Pacyaya (18 days ago)
"Totally" live "without
Meme Boi (19 days ago)
time to cut my liver
anastasia (19 days ago)
Guess who's about to pay her college tuition
Travus Faulkner (20 days ago)
Just a little information the lungs come in five lobes two on the left three on the right. They're not really left half right half.
7Risen7Phoenix7 (21 days ago)
My dad is a kidney recipient. It's been nearly twenty years since his transplant, and he and the man who saved his life are close friends.
Mark Foulger (21 days ago)
My mother has had one kidney for 40 years without knowing it!
Mark Foulger (21 days ago)
That god damn appendix made my life hell for a month
Hematite Knight (21 days ago)
if only all the organs could regenerate.
Eric Kelly (3 days ago)
Yeah I know I wish my small bowel could as I lost ~ 1/3 via surgery due to Crohn's disease. Now I have issues with malnutrition.
WantoN (22 days ago)
Missed out colon.
Eric Kelly (3 days ago)
Very true you can most certainly live with a colon as many do. The small intestine of course is absolutely essential however.
sleepup7931 (24 days ago)
"live" is relative ,sure you could live ....sort of
Mrinal Thakur (24 days ago)
Your shirt is missing a button but you can survive without it
thorandil1 (24 days ago)
Niko Karnezis (25 days ago)
What about the heart? My ex girlfriend doesn't have one and she's still kickin'
HelenaMikas (25 days ago)
A fabulous video ..Said goodbye to my gallbladder and gave 3 cheers ..My father died due to cancer of the stomach .Had they removed it could he have lived ? It was a while back ..Your enthusiasm and explanations are terrific *
D Bizzel (4 days ago)
That is hard to say ma'am. It has to do with having it timely removed and other factors. Before the cancer spreads that is. One can live without a stomach, this is true.
Glenn McGrew II (26 days ago)
The word "Totally" totally makes the title baitclick. lol
Danzspdref (28 days ago)
So I am guessing tonsils are not something you can live without, even though many are removed in a tonsillectomy?
Spunkey Doodle (28 days ago)
I destroyed the rigjt side of my prefrontal cortex in a bicycle crash and now I can expereince two conciousessneses at once. On my left side I can feel the difference in proccessing power.
Петър Жотев (28 days ago)
I think scientists should study the liver regeneration and make regenerations of other things(such as limbs) possible. Yes, lots of animals can regenerate too, but they are just too different from us and their methods may not be applicable to humans. Its amazing that HUMAN tissue can do this!!!
Goldberg Sam (29 days ago)
He is in CrashCourse He also in SciShow , Where else?
Yona SD (30 days ago)
Can I get bilirubin on rye and a side of fries with that? And I'll take the liver to go. Thanks.
Boot lace (1 month ago)
How to lose weight fast
Him Shing Yue (1 month ago)
The title is misleading
Caleb Holdsworth (1 month ago)
ew ew ewww
Landen Ramirez (1 month ago)
If you rly wanted, could you live with out 1/2 of the brain, one lung, the stomach, a kidney, the gallbladder, and 1/2 of the liver
S Cooper (1 month ago)
I wish my kidney would actually take up the slack of my partially damaged one. Right now I only piss about 3/4 of a liter to a liter, despite drinking 3-3.5 liters.
Bob Jones (1 month ago)
Awesome, now i can sell my lungs for some crack.
OtakuUnitedStudio (1 month ago)
You can live without a pancreas too. However, doing so requires regular insulin injection and probably a change in diet to prevent developing diabetes. Pancreatic issues are problematic because the inner tissue of the organ has the consistency of souffle meaning it can't be stitched of damaged and damage to the main duct can cause backups that lead to cancer. Pancreatic cancer has the fastest metastasization rate of any cancer due to how delicate it is, so it's usually better to just install an automatic insulin pump than to risk spreading.
Katie Jackson (1 month ago)
You could have only your brain stem and live.. ...but you only would be able to breath and keep your heart going... .....you will have to be tube fed though :T
Katie Jackson (1 month ago)
(WITH everything intact except your brain, you still need other things lol)
alphamonder (1 month ago)
You can live without any organ. But just for a few moments.
no name (1 month ago)
Evie Roberts (1 month ago)
I always love reading the comments XD
BrOnz3 sPEcTateS (1 month ago)
i know some people that I SWEAR they do not have a brain.
arianna_not_so_grande (1 month ago)
Is this like John Greens twin???
Zain Gaming (1 month ago)
The frontal lobe is not needed i think. I think that it just produces fear happiness depression etc.
redheadger91 (1 month ago)
By now, Niki Lauda actually has 5 kidneys in his body due to donations.
TheEnderExplosion! (1 month ago)
Yes, if I didn’t get my appendix removed a year ago I would be dead...
Alexandre Man (1 month ago)
So, someone with half a brain, one lung, no stomach, no gallbladder, one kidney, no spleen and a quarter of a liver can live?
Karkinos666 (1 month ago)
I'm gonna remove my brain now,hope it works
AblazeEclipse (1 month ago)
Where are my no-appendix homies at?
Thomas Voss (1 month ago)
My tech teacher had his adrenaline gland removed because of cancer
Skylah Rhind (1 month ago)
when my sister was a baby she had half her lung removed
Deceneu (1 month ago)
You forgot quite a couple more organs that can be removed. Almost all endocrine system glands can be removed and with hormonal substitution the person will live from a completely normal life to a mostly normal life examples : the thyroid, parathyroid glands, testes, ovaries, the pancreas, the adrenal glands. You can also remove most of the small intestine with manageable side effects, the colon and more.
When you want to lose weight
WintersunExtras (1 month ago)
The singer of the band Wintersun had part of one of his lungs removed after contracting Tuberculosis, yet he's a very powerful, accomplished singer.
Cabalex (1 month ago)
nah, I think losing your brain is a no-brainer.
Camden Snyder (1 month ago)
I haven't had my appendix since I was about 1. There actually wasn't anything wrong with it, but I had to have surgery in the same area (I don't know exactly why, but there was something wrong with my intestines, and they had to do surgery), so they decided to take out my appendix while they were in there. My dad is missing multiple organs, including one kidney, his gallbladder, his spleen, and a few other things that I can't remember at this moment. He's had a lot of surgeries in his life.
Dylan Boyd (1 month ago)
How many of those organs can you lose collectively?
Nathan Beck (1 month ago)
1. The brain, I know quite a few people without one
daniel able (1 month ago)
I might donate my lung
Dank Tank Drag Kings (1 month ago)
I've had a temporal lobectomy. For two traumatic brain injuries and at least two more concussions I'm really well rounded. And advanced retrograde amnesia (lost almost every memory before 12.5 when I had the surgery) does heal itself. Ten years after the surgery I am now able to trigger memories. I would say I have nearly the same memory recall as most people in thier mid twenties. I will never have my eyesight back (minus 5% total vision or 25% of my peripheral vision). I will always have impulse control issues (but ADHD medicine does help some). Olifactory and auditory hallucinations happen rarely. But I appreciate what I went through. I no longer have seizures constantly. I drive, have a full time job, watch children, manage my own finances. I wouldn't trade the miracle of my right temporal lobecTomy for anything. Plus I have a cubic centimeter of brain matter missing, and I'm still smarter than you.
frosty the snow bob (1 month ago)
Gordon Lawrence (1 month ago)
I swear where I used to live about 1/3 of the people there must have had a bilateral hemispherectomy.
BmnGameBoy (1 month ago)
Ur in
The Jolly Pidgeotto (1 month ago)
I wonder if people who run marathons remove organs to lose weight.
Pirex Kid (1 month ago)
I knew the first would be your brain lol
IvanGamingYT (1 month ago)
0:10 I’m getting nightmares tonight
Michael Damico (1 month ago)
I got a section of my vas deferens cut out and my life is better than ever!
6) the thing that breaks down fat and fsv. You wanna murder the whole concept of keto? You need fsv, fa and...well...fat in general for a healthy life. What you don't necessarily require are carbs - live specimen surviving without carbs for 1 year now after 29 years of being a consumer of sugar. NEXT
5) with societies current consumption of toxins and not paying attention to a healthy diet and just eating what the health department tells you to it's not a good idea to give any part of your liver to anyone. I have 2 more years of regenerating mine from AFLD I caused over the course of 17 years and that's done with keto. NAFLD you can get by eating US diet for 6-8 weeks. Good luck after a removal
4) taking anti biotics...because that good for your gut health...after you've removed the stomach...what's wrong with you people?!? NEXT
2) removal of one side of the lung. So how would someone in the Kenyan mountains do long distance running? Or how would an Olympian competitor perform anyhow? NEXT
1) and removing half a brain will not result in changes in personality and stuff. Please remove half a brain of a pro athlete who relies on both hemispheres for his senses and motor skills and see how they react to you ruining their life. NEXT
Anthony Pinto (1 month ago)
But can't they evolve in something with an other function.
FUCCOD (1 month ago)
So will a heavy drinker's liver recuperate after a while? If they stop drinking of course
Bricks Are The Best (1 month ago)
Woah im stuck inside my skull *CoOl!*
Gronkle Vlonkle (1 month ago)
Don Skiver (1 month ago)
You can live without a colon too. Though, it isn't ideal.
Ryan Alden (1 month ago)
You missed a button homie
Rodgy (1 month ago)
How to get infinite money in just 6 easy steps :D Step 1: Donate a liver (but only 75% of it) and be sure to get paid. Step 2: Be sure to dont drink alcohol or eat a lot. Step 3: Wait for a year or until your liver is fully regenerated. Step 4: repeat Step 5:... Step 6: Profit?
Stefan Lippeck (1 month ago)
That thing about removing the brain somehow resonates badly with what i know about lobotomy and the fact that people started to have two personalities in one body afterwards... I'm not saying you should sanction it, but isn't that like lobotomy with killing off one of the personalities at the same time?
a d (1 month ago)
spleen, thymus
Ginger Ale (1 month ago)
If you donate half of your liver and it regenerates, could you donate half again?
Achedb0b1 (1 month ago)
What if you got all these things removed?
nobbie01 (1 month ago)
After getting rid of the gallbladder, aside from a bit of extra indigestion you can also get an itchy nose whenever you eat very fatty food :D
Andrei Todoran (1 month ago)
Not surprising when you see every day how many people live without a brain.
groundchele (1 month ago)
theoretically could you keep donating and regrowing and donating liver again
Clio Kitt (1 month ago)
*goes to the doctor* Me: can u take away half of my liver? doctor: why...? is there something wrong with it? me: no, i just want to it will grow back its fine

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