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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.
Medication errors are more common among seriously ill patients than with those with minor conditions.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.