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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 (2388)
Kent Hoyt (55 minutes ago)
Ive lived without a vulva for many, many years. I've never even missed it.
Marceliaan (12 hours ago)
I lost one of my testes. But my body stil functions fine with the remaining three.
Aphrodisiac Tresspasser (13 hours ago)
is it possible to have a part of your brain removed even when you don't have any particular ailment that that part is causing? i want my amygdala removed for example.. is it possible?
Aphrodisiac Tresspasser (13 hours ago)
so people can sell their liver, it'll regenerate, then they'll sell half of it again. But maybe liver doesn't cost that much anyway.
I rush b everyday (2 days ago)
s k i n
Arielle Cordero (2 days ago)
i cant believe a tumblr post about all might's condition sent me here.
Eman Name (3 days ago)
The brain?? Well conservatives do it so I guess so.. lol
Mahrez Mus (4 days ago)
8 : Colon, I've been living without it for 6 months now die to a severe case of Crohn's disease that was treated badly, thought Hank would talk about it since it's a chronic intestinal disease.
Zach Delgado (4 days ago)
I do Green, I do mind you calling my body a "well-tuned machine". I expect an apology.
ircimager (6 days ago)
i was born without a good sized chunk of my brain, and so far have only had minor glitches because of it
woloabel (6 days ago)
Humans are heartsruck because we have lost the vital symmetry of the ancients due to a lack of harmony. The problem might be regeneration of tissue whenever the need be has limits, eternity is for the divine....
ResidentEvil rican (6 days ago)
Without a stomach is throwing up the same 4 them? Or burping?
Styven Bryand (6 days ago)
Time to sell them
afnan riyadh (7 days ago)
Please explane slowly i can't catch everything cause my mother language is not English
mindaugas (7 days ago)
what about one of your testees
hayyan 2004 (8 days ago)
Mom: honey, why are you ill? Me: I have half a brain, one kidney, one lung, no gallbladder, no stomach and I have removed a large peice of my liver. Mom: oh
Nicolás Veas (8 days ago)
Definitely the human body is a master piece of engineering 🤓👌
TheCheesegrease (9 days ago)
Whenever i hear Hanks voice, i hit like...
IThinkWithMy Dick (9 days ago)
Don't know what weird inferior schools YOU went to, but all the public schools in the USA, including all those I and my family went through, teach the why & how of everything as well as critical thinking. All that knowledge and skills are lost when one gets a job. Jobs in the USA dumb everyone down. You lose all critical thinking skills, thanks to capitalism & extreme conservatism & hypocrisy of corporations & the governments that defend them.
AmyBlackRoseCena (10 days ago)
I knew about some of these, but I didn't know that you could live without a stomach! Dang that's trippy.
RedViking (10 days ago)
The liver one was really cool. I had never knew the liver could grow back. Very, very cool. I guess you do learn something everyday
Lily Hutchinson (10 days ago)
My grandfather lives with one lung because one accidentally collapsed during heart surgery
master666110 (10 days ago)
I'm sure you can afford to lose a part of almost all organs in your body like in biopsies. But you can't live without a brain, lung, kidney or liver.
noxabellus (10 days ago)
If you dont have a stomach I guess you can't barf anymore?
Transforming318 (11 days ago)
But brain cutting? Wtf??
Transforming318 (11 days ago)
U r the best Hank
Silent Hil, (11 days ago)
you can live without any organ organ what are you talking about
Dumbin theHouse (12 days ago)
What would happen if we lost every organ on this list?
maxcelcat (12 days ago)
Also, I wonder if anyone has had *all* of these organs removed?
maxcelcat (12 days ago)
My appendix and i parted ways about three years ago. Much happier without it!
Ginny Jolly (13 days ago)
My Dad was a victim of the 1953 polio epidemic (get your sugar cube vaccination, kids), and he was paralyzed from the neck down, requiring him to be in an iron lung for a long time till he regained his mobility. The iron lung was like a 12 to 14 ft. Can on its side wit a bellows at one end and a bed on the other end, with a hole for the patient's head to come out; Dad, like others who succumbed to polio, could not breathe on his own. When Dad could breathe on his own, he was left with 1/5th of his lung capacity, which allowed him to live a long life —he was one of the longest lived epidemic survivors. He lived to raise 3 daughters, see his one grandson, and even take a travel vacation with Mom when he was about 60. He had complications along the way including heart failure, acidosis, and flat - lining, but his body compensated for the lung insufficiency by working overtime and over capacity. I asked him once if it were possible to get a lung transplant, would he. He told me he might. It was way after his death at 61 (40 years of blessed marriage) that I saw a TED talk of an opera singer who had sung her lungs into insufficiency, and she even had a few harrowing close calls when her equipment failed. She received a double lung transplant and her lungs gave her great power she never had before, though iirc she tempered her singing career (i.e. Not singing such high arias). I'm sure that with today's medicine, if Dad had had a transplant of even one lung, it would have relieved his body tremendously so that he could live longer. Thought I'd share.
Ginny Jolly (13 days ago)
I knew since my youth some (garble garble 40) years ago that livers grow back. I was interested in Ancient Greek mythology at the time, and the god Prometheus was chained to Mount Aetna for his irritating tricks against the Titans, and an eagle ate his liver every day, but it would grow back every night. He was condemned to this fate for eternity, till Heracles rescued him. Then I found out the human liver does have that regeneration capability. But it didn't occur to me till now that liver cells might be the next candidate for pluripotent cells to create new body parts like stem cells are used for. I think the most difficult obstacle to surmount in transplants is rejection due to cell surface proteins. Pluripotency combined with DNA or RNA vectors (perhaps introduced by engineered viruses) could create proteins compatible with the recipient so the body would identify the transplant tissue as self tissue rather than rejecting it as alien tissue.
Efrain Benitez (14 days ago)
Very informational video wow. Keep it up 👌
Madalin Grama (15 days ago)
Just one small correction: the stomach doesn't actually absorb vitamin B12, it secretes a substance that facilitates the process, called the Castle factor. But the actual absorbing is still done at the small intestine level like most other nutrients.
Laffy Taffy (16 days ago)
Are you serious? Wow. The human body truly is astonishing.
Lo Brundell (16 days ago)
0:38 * blush *
Ben (23 days ago)
You forgot to talk about tonsils
The Flaming Axe (24 days ago)
Sperm cells
JANKARSTEN MACOCO (24 days ago)
can u make a video about the vitamins u need and what they do please
Sayan Chattaraj (25 days ago)
appendix
Novaturient (25 days ago)
My first thought was ooooh what body parts can I sell in the black market?!
Gerald Revell (25 days ago)
u got me when you say “the brain”
Jillian Vaughan (26 days ago)
My husband is living without a big chunk of his liver, his appendix, gallbladder, and 12 feet of small intestine (thanks, cancer...) However, he’s totally kicking butt, working full time, and eating and digesting normal food! Our bodies are amazing :)
DJpepperCat (28 days ago)
Someone I know got there spleen removed
LINK servis (28 days ago)
I had bilirubin stones and had my gallbladder removed when I was 25... paradoxically my digestion works better after that...
Gaming with Rocket (28 days ago)
3 kidneys???
Francesca Hart (28 days ago)
Are there any stories of someone donating part of their liver more than once?
Elephant Groove (29 days ago)
His missing button is driving me crazy.
mossab mohamed (1 month ago)
Testis also can be removed and it was done a lot befor.
muneeb ahmed (1 month ago)
Just imagine a guy without half of a brian, one lung, a stomach, a spleen, and one kidney. Will he still be able to live a normal life.
weave is snatched (1 month ago)
My new pickup line: your body is a fine machine
candymountainn (1 month ago)
"your liver can regenerate" ok now i dont feel so guilty down the hatch
Scouty D (1 month ago)
Video is okay but the title is horribly worded
PCLHH (1 month ago)
You can also live without your eyes.
Melaine Meyer (1 month ago)
My grandmother had to have her gallbladder removed because of gallstones. She's still living a normal life, she just needs to watch what she eats, she basically can't have anything too fatty or else she'll feel really ill for a day or so.
Jintaro Kensei (1 month ago)
If you have no stomach your burps will smell like farts.
Cypher (1 month ago)
My spleen!
John Groshner (1 month ago)
I never knew that liver replicates THATS AMAZING
John Groshner (1 month ago)
I LOVE EATING IM KEEPING MY STOMACH
boi succ an egg (1 month ago)
Well you can live without your brain, have you seen ali-a?
Giraffeics (1 month ago)
Lungs are like graphics cards: two can do more than one, but you get diminishing returns.
That Lonely Shadow (1 month ago)
My neighbour had no kidneys and was told he had 3 years to live. Lasted 10. 👍
Computer Griffin (1 month ago)
My mom went through the surgery and survived. 1:39
blackiesun (1 month ago)
The only things I had removed were tonsils and adenoids at 5. Adenoids were enlarged and giving me sleep apnea. Been fine without them!
Psychotic Hobbit (1 month ago)
So if I were to remove said organs, how much weight would I lose?
MeeloKats ! (1 month ago)
imagine if you had 4 kidneys left in you and you bent down and felt something pop... *shudders*
Spuz (1 month ago)
Time to sell 7 of my organs on the black market and get rich!
MeyFae (1 month ago)
Just thought it was really awesome to say that me and my brothers were born without a gallbladder lol
Night Hawk (1 month ago)
Damn the human body is amazingly designed. I thank whoever made it lol
Heaven Squires (1 month ago)
Is all this true?
Bethany Lade (1 month ago)
My husband had abdominal surgery, and they preemptively removed his appendix. I think this is pretty normal now, but in his case, his appendix was on the wrong side.
Gianna Hayes (1 month ago)
My dad donated a kidney to his brother last summer. After the surgery my dad kept explaining to us how the kidney compensates for the other missing kidney, and how when they put the new kidney in they don't take the old one out.
What? 3 kidneys? That's the first time I've heard of it.
Benjamin Cronce (1 month ago)
Gallbladder removed here. Only 3 small incisions now.
Time to make some money
cosmosofinfinity (1 month ago)
What if you had NONE of these?
Izzy Jaded (1 month ago)
I got a liver for sale
Izzy Jaded (1 month ago)
I gotta lung for sale
No Name (1 month ago)
uhhh I need to add kidneys to my collection. Any volunteers?
Dr Deutschland (1 month ago)
I wonder why we don’t have a redundant heart
Trav Davi (1 month ago)
Did you miss a button on your shirt? I’m pretty sure you forgot to button up your third button. I had to ask that. It goes with the video though. You can live while missing some organs. You can wear your shirt while missing some buttons.
Litz Times7 (1 month ago)
Somebody had 5 kidneys yey
Liam Cruse (1 month ago)
I don’t have my appendix anymore.
Emik Zotic (1 month ago)
How much can i sell these for on the black market ?
MatanteDodo (1 month ago)
When I saw the icon I thought it'd be about the extra organs people are often born with. Like accessory spleens or pancreases, or how 4 parathyrroid glands turned out to be a minimum rather than a set number.
RLucas3000 (1 month ago)
I’m curious about the pancreas now
Grace Hengst (1 month ago)
My aunts liver poisoned her brain
Steve McQ (1 month ago)
After gallbladder removal I just have to avoid eating a lot of greasy foods, too much fat usually means several trips to the bathroom.
Cod4 Wii (1 month ago)
time to sell my liver
AstronoTwin Merkel (1 month ago)
I wonder, why was it that we evolved with 2 lungs and kidneys? Was it just that some mutation caused someone to be born with an extra organ and it ended up helping them survive?
ChillWii (1 month ago)
*Here I come dream house...*
Tanner Haslam (1 month ago)
I have a rare form of asthma and I only can use 80% of my breath
TheGaelicBulbachu (1 month ago)
Well if anyone wants to try to remove all of these organs (or parts of them) and reply to this is you live.
wolvessarrah96 (1 month ago)
While most can leave without a gallbladder I had mine removed and have suffered from it every since. Other medical issues can occur after the gallbladder has been removed
HomerPimpson (1 month ago)
Living without a brain is totally dooable. Have you guys watched The wizard of Oz even?
Random Commenter (1 month ago)
Some people are heartless too.
Carol C. (1 month ago)
Looks like no-one noticed he missed a button.
FeritFox (1 month ago)
what about your reproductive organs? You could technically live without them.
Christopher G (26 days ago)
You can also live without your eyes, arms, legs, etc. Luckily the cases where we have to remove either to save the rest is rare.
Jan Christian Frodahl (1 month ago)
I kinda feel like large parts of the world`s population ARE living without half their brain.. xD
Lacy Salgat (1 month ago)
Y'all ever feel happy about your body when you hear this kind of stuff? Like, i feel like im praising a dog, "Whos a good body? You are!"

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