Enamel is hardest substance in the human body.
61
If your DNA was stretched out it would reach to the moon 6,000 times.
256
When you take a step, you are using up to 200 muscles.
886
The average person's skin weighs twice as much as their brain.
131
Yawns are more contagious among people with closer relationships.
163
Chewing gum boosts your brain power.
285
Your body is creating and killing about 2.4 million red blood cells per second.
17