The human brain has the capacity to store everything that you experience.
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Every year your body replaces 98% of your atoms.
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The average person's skin weighs twice as much as their brain.
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Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
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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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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
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