The average sperm cell swims at 8 inches per hour.
76
One human hair can support 3 ounces.
191
There are about 1,400 different species of bacteria in your belly button.
10
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218