Elderly men and women who regularly drink caffeinated beverages may be protected against death from heart disease, a prospective, epidemiologic study suggests. The study adds to the growing evidence that caffeine, and particularly coffee — long saddled with an unhealthy reputation — may in fact not be harmful to the heart, particularly in people without other risk factors for the disease.
Not all studies have supported a beneficial role for caffeine and coffee, however.
Writing in the March issue of the American Journal of Clinical Nutrition, James A. Greenberg from Brooklyn College of the City University of New York, and colleagues hypothesized that caffeinated beverages — which have a pressor effect, raising blood pressure (BP) levels — might affect postprandial hypotension, a phenomenon that has been linked to risk for coronary events and mortality in older people who already have low BP. Their findings would also explain, in part, why younger subjects, and those with hypertension, may not benefit.
http://www.medscape.com/viewarticle/553458?rss
No comments:
Post a Comment