The adult human brain weighs about 3 pounds (1,300-1,400 g).
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Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
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One human hair can support 3 ounces.
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The average person's skin weighs twice as much as their brain.
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The human body contains over a billion miles of DNA.
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The largest cell in the human body is the female egg and the smallest is the male sperm.
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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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After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
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