A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
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An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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It takes approximately 12 hours for food to entirely digest.
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A person can live without food for about a month, but only about a week without water.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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