Your tongue is the only muscle in your body that is attached at only one end.
173
The human brain is insensitive to pain.
76
40% of all indigestion remedies sold in the world are bought by Americans.
8
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
Your skeleton keeps growing until you are about 35, then you start to shrink.
74
The average sperm cell swims at 8 inches per hour.
4
35,000 people in the U.S. will die from the flu annually.
6