The adult human brain weighs about 3 pounds (1,300-1,400 g).
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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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Every year your body replaces 98% of your atoms.
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When you take a step, you are using up to 200 muscles.
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Chewing gum boosts your brain power.
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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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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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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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