The average sperm cell swims at 8 inches per hour.
76
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
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 average person's skin weighs twice as much as their brain.
131
Held in farts enter your bloodstream and are bad for your body.
26
A human being loses an average of 40 to 100 strands of hair a day.
133
One human hair can support 3 ounces.
191