Only 1% of bacteria cause disease in humans!
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Obsessive nose picking is called Rhinotillexomania.
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All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
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On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
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Your heart will pump about 212 million liters in its lifetime.
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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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The average person who stops smoking requires one hour less sleep a night.
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Gardening is said to be one of the best exercises for maintaining healthy bones.
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