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Vaccines prevent between 2.5 and 4 million deaths every year.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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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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Illicit drug use costs the United States approximately $181 billion every year.
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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.