The human sigh acts as a physiological reset button.
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The largest cell in the human body is the female egg and the smallest is the male sperm.
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We share 70% of our DNA with a slug.
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The human brain doesn't stop developing until about 25 years old.
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Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
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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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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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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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