There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
There are about 1,400 different species of bacteria in your belly button.
10
Your body is creating and killing about 2.4 million red blood cells per second.
17
In one day, adult lungs move about 10,000 litres of air.
11
If your DNA was stretched out it would reach to the moon 6,000 times.
256
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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