Only 1% of bacteria cause disease.
45
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Fingernails grow nearly 4 times faster than toenails!
30
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Every year your body replaces 98% of your atoms.
119
At age 70, more than 70 percent of men are still potent!
29
One quarter of the human brain is used to control the eyes.
43