Eighty percent of women who are stricken with breast cancer have no family history of the disease. One factor that contributes to their susceptibility is age. Breast cancer is rare in women under 20, but increases from age 20 to 50. Another factor a...
Stroke is the most common sudden injury to the brain, the third leading cause of death in the U. S. after heart disease and cancer. It is the principal cause of adult disability, and a common reason for people to be placed in nursing homes. A stroke...