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Cardiovascular diseases remain nation's leading cause of death.

THE SO-CALLED graying of America literally is becoming a heartfelt problem. This is especially true for the nation's women. At a seminar this week in Galveston, Tex, American Heart Association officials cited their own and federal government data indicating that one in nine women aged 45 to 64 years in this country has some form of heart or blood vessel disease. That ratio climbs to one in three women who are aged 65 years or older. Science Reporters' Forum These officials used the association's 19th forum for science reporters ( JAMA . 1987;258:2197, 2202, 2211) to point out also that—although men have a greater risk of developing hypertension while younger—when persons of either sex reach 55 years of age, the risk of high blood pressure becomes approximately equal. And, says the association, after age 65, women are more likely to develop high blood pressure than men. More than half of all women