There are about 1,400 different species of bacteria in your belly button.
10
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
A human being loses an average of 40 to 100 strands of hair a day.
133
One human hair can support 3 ounces.
191
The average sperm cell swims at 8 inches per hour.
76
The average person's skin weighs twice as much as their brain.
131