When you take a step, you are using up to 200 muscles.
886
The average sperm cell swims at 8 inches per hour.
76
The human brain doesn't stop developing until about 25 years old.
102
All the chemicals in a human body combined are worth about 6.25 euro (if sold separately).
266
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111