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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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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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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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