Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Only humans shed emotional tears.
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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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On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
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The human sigh acts as a physiological reset button.
23
Mushrooms are more closely related to humans than they are to plants.
47
It has been scientifically proven that stroking a cat can lower one's blood pressure!
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Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
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