Our brains have a negativity bias and will remember bad memories more than good ones.
15
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
Ingrown toenails are hereditary.
15
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
The skin on your lips is 200 times more sensitive than your fingertips.
345
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
Pain travels through the body at 350 feet per second!
23
It is possible to go blind from smoking too heavily.
50