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There are approximately 3 million unintended pregnancies in the United States each year.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.