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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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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.