Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
The human body contains over a billion miles of DNA.
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It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
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A human being loses an average of 40 to 100 strands of hair a day.
133
A person can live without food for about a month, but only about a week without water.
156
All 13 minerals necessary for human life can be found in alcohol beverages.
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