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Did you know?
Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
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There are 60,000 miles of blood vessels in every adult human.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%