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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It takes twice as long to lose new muscle if you stop working out than it did to gain it.
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Your thumb is about the same size as your nose.
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Your body is creating and killing about 2.4 million red blood cells per second.
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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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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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The human brain uses approximately as much energy as a 10 watt light bulb.
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