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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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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
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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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People about to have surgery must tell their health care providers about all supplements they take.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.