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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.
If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.
The familiar sounds of your heart are made by the heart's valves as they open and close.
The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.