Buzz·Posted on Oct 25, 201422 Facts About The Human Body You'll Never Be Able To ForgetYour body is a wonderland. A horrifying, beautiful wonderland.by Arianna ReboliniBuzzFeed StaffFacebookPinterestTwitterMailLink 1. Your heart can keep beating outside of your body. Warning This image is graphic Tap to reveal Click to reveal Tap to play GIF Tap to play GIF gifbay.com TransMedics has developed a system to keep donor hearts pumping blood while it's transported, and it is amazing. 2. Speaking of your heart, it pumps with enough pressure to squirt blood 30 feet across a room. Tap to play GIF Tap to play GIF btrflyeffect.tumblr.com 3. There are mites living in your eyelashes. Alan Walker / Via commons.wikimedia.org They're called Demodex, and they embed their heads into your hair follicles. 4. The average adult has ten times more bacteria than human cells living in their body. Tap to play GIF Tap to play GIF merismo.tumblr.com (In other words, 90% of the cells in our body don't even belong to us.) 5. If you laid all of your blood vessels (veins, arteries, and capillaries) end to end, the line could circle the globe more than twice. Tap to play GIF Tap to play GIF onlydreaminblackandwhite.tumblr.com 6. And just to really drive the point home: there could be more bacteria living in your mouth than there are human beings on this earth. Tap to play GIF Tap to play GIF CW / Via gifbay.com 7. In rare cases, people who have sustained injuries to their right anterior cerebral hemisphere will develop "Gourmand syndrome": an eating disorder in which the person becomes obsessed with eating and thinking about fine foods. Tap to play GIF Tap to play GIF Paramount Pictures / Via thegoodfilms.com 8. Speaking of rare disorders, people with Exploding Head Syndrome will hear a loud bang in their heads, like a bomb exploding, right as they're falling asleep. Tap to play GIF Tap to play GIF moviesplode.tumblr.com 9. And heartbreak is more than a metaphor: Broken Heart Syndrome mimics a heart attack and is spurred by stressful or tragic situations. Tap to play GIF Tap to play GIF NBC / Via forums.thebump.com 10. When you blush, the lining of your stomach does, too. Tap to play GIF Tap to play GIF Cartoon Network / Via gif-database.tumblr.com 11. There is a type of tumor that can grow teeth and hair. Warning This image is graphic Tap to reveal Click to reveal Bobjgalindo / Creative Commons They're called teratomas. 12. You are shorter when you go to bed than you are when you wake up. Tap to play GIF Tap to play GIF Disney / Via miragif.tumblr.com 13. And, starting at around age 30, you lose about half an inch in height every ten years. Tap to play GIF Tap to play GIF cheezburger.com 14. You also lose about half of your taste buds by age 60. Tap to play GIF Tap to play GIF Universal / Via pandawhale.com Enjoy while you can! 15. Kissing (but, like, full-on, drool-y making out) fights cavities. Tap to play GIF Tap to play GIF tumblr.com Anything that increases saliva! 16. Humans are bioluminescent — AKA, we glow — but the light is too weak to be seen by the human eye. Tap to play GIF Tap to play GIF michaelbransonsmith.net Special cameras found that the brightest light was emitted from our cheeks, forehead, and neck. 17. In the 1940s, about 75% of Americans claimed they rarely, if ever, dreamed in color. Tap to play GIF Tap to play GIF Paramount Pictures / Via thegoodfilms.com Experts say it has to do with growing up with black and white TV. These days, that number is down to 12%. 18. Humans — like all mammals — have a "diving reflex" which instinctively shuts down certain parts of the body to conserve energy when submerged in cold water. Tap to play GIF Tap to play GIF Focus Features / Via too-ugly-for-u.tumblr.com Other mammals use it for hunting or diving, but we use it to survive in near-drowning scenarios. 19. Tears that are shed for different reasons — like, from sadness, or happiness, or an onion — actually have different compositions. Tap to play GIF Tap to play GIF Universal / Via gifsofnicolascage.tumblr.com 20. Pregnant women's brains shrink during pregnancy and take six months post-delivery to get back to its previous size. Tap to play GIF Tap to play GIF reactiongifs.com 21. Babies are born with over 90 more bones than they'll have as adults. Tap to play GIF Tap to play GIF cheezburger.com The extras will fuse with others as they age. 22. And the human embryo's first development is the anus. Tap to play GIF Tap to play GIF FOX / Via imwithkanye.tumblr.com The second is the mouth, which means we're deuterostomes. Or, we're all a bunch of buttholes from the start.