20 minutes after smoking a cigarette, blood pressure drops to normal.
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Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
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The human sigh acts as a physiological reset button.
23
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Fingernails grow nearly 4 times faster than toenails!
30
25% of your bones are located in your feet.
12
Research indicates that babies who suck on pacifiers are more prone to ear aches.
21
Your heart beats over 100,000 times a day!
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