If your DNA was stretched out it would reach to the moon 6,000 times.
256
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
You inhale about 700,000 of your own skin flakes each day.
29
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
The tongue is the strongest muscle in the human body.
50
You would need to smoke between 20,000-40,000 joints to be at risk of dying of a THC overdose.
12
The average sperm cell swims at 8 inches per hour.
4
There are more bacteria in your mouth than there are people in the world.
60