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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.