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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

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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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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Three Tasmanian devils feeding. Eating is a social event for the Tasmanian devil, and groups of 2 to Three Tasmanian devils feeding. Eating is a social event for the Tasmanian devil, and groups of 2 to
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Fred Tomaselli, Airborne Event. Fred Tomaselli, Airborne Event.
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Cretaceous-Tertiary (K-T) event Cretaceous-Tertiary (K-T) event
Sol Duc Falls in Olympic National Park, Washington. Sol Duc Falls in Olympic National Park, Washington.
Video: Pressure volume relationships - Normal inspiration and expiration

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