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Did you know?
The human body produces and destroys 15 million blood cells every second.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
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Your heart beats over 36 million times a year.