It takes about 20 seconds for a red blood cell to circle the whole body.
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Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
The human brain has the capacity to store everything that you experience.
4k
Every year your body replaces 98% of your atoms.
119
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Your body is creating and killing about 2.4 million red blood cells per second.
17