The human brain doesn't stop developing until about 25 years old.
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When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
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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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Your body is creating and killing about 2.4 million red blood cells per second.
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Our Right Lungs takes more air than our left lung.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
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