The human brain is more active during sleep than during the day.
28
The average sperm cell swims at 8 inches per hour.
4
On average a woman has 4 sexual partners in her lifetime.
-143
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
The human brain doesn't stop developing until about 25 years old.
102
One human hair can support 3 ounces.
191
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The human brain uses approximately as much energy as a 10 watt light bulb.
120