Fifty million adults in the United States have hypertension (high blood pressure), a condition associated with an increased risk of death and disability from heart disease , stroke , congestive heart failure , and end-stage renal disease.
For most people, high blood pressure is marked by a systolic blood pressure (higher number) at or above 140 mmHg or diastolic blood pressure (lower number) at or above 90 mmHg. For persons with diabetes and certain other disorders, the “target” for blood pressure is kept lower; for many of these individuals, the normal blood pressure should be under 130 mmHg (systolic) and under 80 mmHg (diastolic).
Risk factors for high blood pressure include the following:
The National Heart, Lung, and Blood Institute’s National High Blood Pressure Education Program (NHBPEP) has updated its recommendations to prevent high blood pressure. The recommendations, published in the October 16, 2002 issue of The Journal of the American Medical Association , include the following:
NHBPEP also reinforces earlier recommendations, including the following:
These lifestyle guidelines are essential for seniors and anyone else who is at risk for developing high blood pressure. Another approach currently endorsed by NHBPEP is use of the DASH diet , a special low salt diet which has been shown effective in both preventing and treating high blood pressure.
The NHBPEP report also addresses the fact that some widely publicized approaches have less proven or uncertain usefulness in preventing or lowering high blood pressure. These include fish oil ( omega-3 polyunsaturated fatty acids ) and calcium supplements, which lower blood pressure only slightly in individuals with hypertension. The report also cautioned that the ability of herbal and botanical supplements to safely lower high blood pressure is unproven and can adversely interact with medications. On a more positive note, a recent study suggests having a small amount of dark chocolate each day may be a tasty way lower you blood pressure a few points.
RESOURCES:
American Diabetes Association
http://ada.org/
American Heart Association
http://www.americanheart.org/
National Heart, Lung, and Blood Institute
http://www.nhlbi.nih.gov/
CANADIAN RESOURCES:
Health Heart.org
http://www.health-heart.org/
Heart and Stroke Foundation of Canada
http://ww2.heartandstroke.ca/
References:
The DASH eating plan. National Heart, Lung, and Blood Institute website. Available at: http://www.nhlbi.nih.gov/health/public/heart/hbp/dash/new_dash.pdf .
National Institutes of Health website. Available at: http://www.nih.gov .
Taubert D, Roesen R, Lehmann C, Jung N, Schömig E. Effects of low habitual cocoa intake on blood pressure and bioactive nitric oxide. A randomized controlled trial. JAMA. 2007;298:47-60.
Whelton PK, He J, Appel LJ, et al. Clinical and public health advisory from the National High Blood Pressure Education Program. JAMA. 2002;288:1882-1888.
Last reviewed January 2009 by Igor Puzanov, MD
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