On average, there's 100 billion neurons in the human brain.
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Your heart beats over 100,000 times a day!
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The human brain doesn't stop developing until about 25 years old.
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After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
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The smallest human penis ever recorded was just 5/8 of an inch long!
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Drinking watermelon juice before a workout helps reduce muscle soreness.
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In the average lifetime a person will breath in about 44 pounds of dust.
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Fingernails grow nearly 4 times faster than toenails.
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