The adult human brain weighs about 3 pounds (1,300-1,400 g).
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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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It takes twice as long to lose new muscle if you stop working out than it did to gain it.
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The human brain uses approximately as much energy as a 10 watt light bulb.
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The human brain has the capacity to store everything that you experience.
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It takes about 20 seconds for a red blood cell to circle the whole body.
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Your heart will pump about 212 million liters in its lifetime.
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