In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
A person can live without food for about a month, but only about a week without water.
156
Yawns are more contagious among people with closer relationships.
163
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The human brain is more active during sleep than during the day.
28
Every human spent about half an hour as a single cell.
144
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34