If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
The life cycle of a flowering plant, illustrated by the genus Polygonum