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The average adult has about 21 square feet of skin.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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 B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.