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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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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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If you could remove all of your skin, it would weigh up to 5 pounds.

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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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On average, the stomach produces 2 L of hydrochloric acid per day.

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