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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.
The familiar sounds of your heart are made by the heart's valves as they open and close.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.
Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.