The adult human brain weighs about 3 pounds (1,300-1,400 g).
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If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
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After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
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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.
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When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
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If you are cold you are more likely to be hungry because you use energy to keep warm.
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Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
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