The average sperm cell swims at 8 inches per hour.
76
The average person's skin weighs twice as much as their brain.
131
When you take a step, you are using up to 200 muscles.
886
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Chewing gum boosts your brain power.
285
One human hair can support 3 ounces.
191