The human brain is more active during sleep than during the day.
28
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Your heart will pump about 212 million liters in its lifetime.
26
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
A man's beard grows fastest when he anticipates sex.
239
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Every human spent about half an hour as a single cell.
144