Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Only humans shed emotional tears.
331
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
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
The human brain is more active during sleep than during the day.
28
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346