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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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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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There are more sensory neurons in the tongue than in any other part of the body.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.