“The acid in your stomach could burn your skin! I always thought that was pretty interesting, and reminds me of the scene in Alien, where the alien blood burns everything.”
“Your intestines are in near constant motion, wiggling like a worm.”
“We know what everything would feel like on our tongues without even licking it.”
“The cornea is the only part of the human body that does not receive oxygen from blood. It gets oxygen directly from the atmosphere.”
“There is a reflex called the Gastrocolic Reflex. When you eat, your stomach sends a signal to your colon, especially telling it “hey, you gotta make room!” giving you the urge to defecate. Some foods stimulate the reflex more strongly than others, that is why sometimes it feels like food “went through you” after you eat.”
“Because of the shape and position of your stomach (most most people), if you sleep on your left side you can help prevent/lower acid reflux.”
“Humans can smell wet ground better than sharks can smell blood in water.”
“We have the same number of bones in our neck as a giraffe.”
“The clitoris has no other function other than to give you pleasure.”
“If you were to stretch out the entire surface area of your lungs, they would cover a tennis court.”
“If you drink nothing but purple Powerade for 3 days straight you poop will turn neon green”
“There’s a small fishing village/tribe in Asia where the fisherman have evolved to be able to hold their breath for around 10 minutes while hunting underwater.”
“Natural redheads require increased doses of anesthesia, due to some connection with the mutated melanocortin-1 receptor. “
“A small percentage of people are “Super Sleepers” and are fully recharged after 2 to 4 hours of sleep each night.”
“Your hands and feet alone account for more than half of all the bones in your body (106/206)”
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#12 I’m sure it’s more conditioning than evolution. If you hold one of their newborns under water for a couple of minutes, it probably won’t come up breathing.