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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.