It takes about 20 seconds for a red blood cell to circle the whole body.
102
The human brain is insensitive to pain.
76
When a person dies, hearing is usually the last sense to go.
124
Your thumb is about the same size as your nose.
124
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
If you unfolded your brain, it would cover an ironing board.
42
40% of all indigestion remedies sold in the world are bought by Americans.
8
Your skeleton keeps growing until you are about 35, then you start to shrink.
74