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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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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.