The human brain has the capacity to store everything that you experience.
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For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
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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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Your body is creating and killing about 2.4 million red blood cells per second.
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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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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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Your thumb is about the same size as your nose.
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