In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
The average sperm cell swims at 8 inches per hour.
4
You forget 90% of your dreams.
256
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Poor eyesight (myopia) is associated with higher IQ.
232
The human sigh acts as a physiological reset button.
23