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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The average adult has about 21 square feet of skin.