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Author Question: In 1950, a phone call at a pay phone cost 5 cents and a first-class stamp cost 3 cents. Today, those ... (Read 536 times) |
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
People about to have surgery must tell their health care providers about all supplements they take.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.