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The horizontal fraction bar was introduced by the Arabs.
Green tea is able to stop the scent of garlic or onion from causing bad breath.
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.
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.