The brain's hippocampus shrinks with age but exercise and learning can partially reverse this.
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Your brain filters most sensory input.
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Your brain builds awareness.
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The human body contains trillions of cells.
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The human brain contains about 86 billion neurons.
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The heart pumps blood through approximately 60,000 miles of blood vessels.
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A human brain generates enough electrical activity to be measured outside the skull.
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Your brain can store the equivalent of millions of gigabytes of information.
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Your small intestine is about 20 feet long — about four times your height.
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