back to top

22 Facts About The Human Body You'll Never Be Able To Forget

Your body is a wonderland. A horrifying, beautiful wonderland.

Posted on

1. Your heart can keep beating outside of your body.

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.

3. There are mites living in your eyelashes.

They're called Demodex, and they embed their heads into your hair follicles.
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.

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.

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.

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.

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.

9. And heartbreak is more than a metaphor: Broken Heart Syndrome mimics a heart attack and is spurred by stressful or tragic situations.

NBC / Via forums.thebump.com

10. When you blush, the lining of your stomach does, too.

Cartoon Network / Via gif-database.tumblr.com

11. There is a type of tumor that can grow teeth and hair.

Bobjgalindo / Creative Commons

They're called teratomas.

12. You are shorter when you go to bed than you are when you wake up.

Disney / Via miragif.tumblr.com

13. And, starting at around age 30, you lose about half an inch in height every ten years.

14. You also lose about half of your taste buds by age 60.

Universal / Via pandawhale.com

Enjoy while you can!

15. Kissing (but, like, full-on, drool-y making out) fights cavities.

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.

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.

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.

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.

20. Pregnant women's brains shrink during pregnancy and take six months post-delivery to get back to its previous size.

21. Babies are born with over 90 more bones than they'll have as adults.

cheezburger.com

The extras will fuse with others as they age.

22. And the human embryo's first development is the anus.

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.

Top trending videos

Watch more BuzzFeed Video Caret right

Top trending videos

Watch more BuzzFeed Video Caret right
The best things at three price points