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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.
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.