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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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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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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.