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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
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The horizontal fraction bar was introduced by the Arabs.
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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

