The smallest human penis ever recorded was just 5/8 of an inch long!
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An average adult produces about half a liter of flatulent gas per day, resulting in an average of about fourteen occurrences of flatulence a day.
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Ingrown toenails are hereditary.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
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When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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