If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Every hour one billion cells in the body must be replaced.
17
Wearing tight pants can lead to impotence in men.
120
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
You see your nose at all times, your brain just chooses to ignore it.
30
The right lung takes in more air than the left.
30
Banging your head against a wall uses 150 calories an hour.
57