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Vaccines prevent between 2.5 and 4 million deaths every year.
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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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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.