Blood makes up about 7% of a person's body weight.
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Your brain can store the equivalent of millions of gigabytes of information.
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The acid in your stomach is strong enough to dissolve razor blades.
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Humans can adapt to high altitudes over time.
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Earwax has antibacterial properties and helps protect the ear canal.
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Your brain can store the equivalent of millions of gigabytes of information.
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The human body contains trillions of cells.
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Only about 20% of people can voluntarily wiggle their ears.
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The human brain continues developing into your mid‑twenties.
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