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Did you know?
The longest a person has survived after a heart transplant is 24 years.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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The human body produces and destroys 15 million blood cells every second.