Your body is creating and killing about 2.4 million red blood cells per second.
17
Held in farts enter your bloodstream and are bad for your body.
26
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The human body contains over a billion miles of DNA.
147
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The average sperm cell swims at 8 inches per hour.
76