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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.