The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
Your skin is actually an organ.
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Dieters who sleep more take off more fat that those who sleep less.
159
25% of your bones are located in your feet.
12
Nearly 80 percent of all sudden cardiac arrests happen at home.
7
The heart pumps about 1 million barrels of blood during an average lifetime!
30
If you are bitten by a poisonous snake, and fail to receive medical attention, you still have a 50% chance of survival.
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