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A Doctor's Word: How to Keep Your Blood Pressure Down

New America Media, Commentary, Erin Marcus, M.D. Posted: Apr 02, 2010

When her gynecologist told her she had high blood pressure, Marie Alcindor had a simple solution: switch doctors. After all, she had gone to him for a different problem, and this was the first time he had ever checked her blood pressure.

He said, Oh my God, youre like a bomb waiting to explode. I said, I didnt come here for that, I came here for something else, she explained.

Two years later, Marie went to see her general medical doctor, who was also a family friend. He looked me dead in my face and said, Ive known you since you were a teenager and you dont want to die. Would you like somebody to be wiping the dribble from your mouth, would you like to walk with a
dragging foot?

This time, she heeded her doctors warning. She began the medications he prescribed, even though she didnt like taking pills. She also began making changes in her everyday life. These behavioral changes, or lifestyle modifications, are recommended by the federal governments National High Blood Pressure Program . The program also recommends these changes for people with pre-hypertension, blood pressure thats above normal but not yet in hypertensive range (120-139 for the top, or systolic, number, and 80-89 for the bottom, or diastolic, number).

Lifestyle changes alone arent sufficient for many people with high blood pressure. But combined with medicine, they worked for Marie. After two years, her blood pressure fell to the normal range, and she no longer needs pills. The headaches and shortness of breath that she used to experience have also receded.

High blood pressure is rampant, and its one of the most common reasons why people develop strokes, heart problems, and kidney failure. It usually does its damage insidiously, and many people with high blood pressure dont have any symptoms until they have a stroke or heart trouble. Below are lifestyle modifications recommended by the National High Blood Pressure Education Program (NHBPEP), which have helped people like Marie. Please note that while these lifestyle changes are important, they are not a substitute for medication, if thats what your doctor recommends.

Lose Weight
If you are overweight, getting your weight to a normal range is one of the most potent things you can do to lower your blood pressure. The NHBPEP recommends that people ideally get their weight down to normal range, which they define as a Body Mass Index (BMI) of 18.5 to 24.9 (there are many on-line tools to help you calculate your BMI, like this one from the National Heart Lung and Blood Institute. If thats not possible, even losing 10 pounds can help many people lower their systolic blood pressure (the top number) by 5 to 20 points (millimeters of mercury, to be exact). Marie lost 75 pounds by exercising and ending her lifelong habit of eating lunch at McDonalds and drinking soda. It was like a wake-up call, she said. I just did a 180.

Following the DASH Diet
The DASH diet consists of fruits, vegetables, low fat dairy products, and foods that are low in fat. According to the NHBPEP, adopting the DASH diet will drop systolic blood pressure about 8 to 14 points in most people. The DASH diet contains a lot of potassium, and people with kidney problems should check with their doctors before adopting it, since they are at risk of developing dangerously high potassium levels. Marie began cooking more fish and vegetables, and learned to include more vegetables and less oil in her favorite Bahamian dishes.

Restricting Sodium
According to the NHBPEP, lowering sodium intake to 2.4 grams a day (about 1 teaspoon of salt) will lower systolic blood pressure by 2 to 8 points. For many people, following an even lower sodium diet 1600 mg, combined with following the DASH diet, can be as effective at lowering blood pressure as a prescription medicine, according to the NHBPEP. The quickest way to lower your sodium intake is to stay away from canned and processed foods and limit your eating at restaurants. A fuller list of ways to reduce sodium intake can be found in a recent Doctors Word column .

Your taste buds will adapt to a low-sodium diet, even though its tough at first. It was very very hard, Marie said of her experience cutting sodium from her diet. But once you give it a week, you start developing a taste for it.

Aerobic Physical Activity
Brisk walking, or some other regular aerobic physical activity, at least 30 minutes per day, will lower systolic blood pressure by 4 to 9 points, according to the NHBPEP. After getting her heart checked by her doctor, Marie began walking for 30 to 45 minutes every day. She also increased her walking by parking in a more distant space at the grocery store.

Limit alcohol consumption
For men, this means no more than 2 drinks a day, and for women, no more than 1 drink a day. (A drink is one 12 ounce beer, 5 ounce glass of wine,, or 1.5 ounces of whiskey). The NHBPEP says this will lower systolic pressure by 2 to 4 points on average.

Dont smoke
Smoking can trigger heart problems, and the combination of smoking and high blood pressure is dangerous. It can seem difficult to quit, but it is possible to escape the smoking trap.

Learn to manage how you respond to stressful situations
Theres good evidence that people who respond angrily to stressful situations are more likely to develop heart problems. Marie said she used to have tantrums before when she got frustrated, but now she takes life one day at a time. You cant change things, so you have to relax and let it go, she said.

Keep track of your blood pressure.
Many fire departments will check blood pressure for free, either at regular screenings or on a drop-in basis. Check with your local department. The National Health Lung and Blood Institute has auseful cardthat can help you understand what the reading means.

Dont skip your medications
Of all the medications doctors prescribe, blood pressure medicine is one of the most important. Skipping a dose on your own can be dangerous. If youre having side effects, call your doctor or nurse practitioner right away. Its also important to tell them if youre worried about paying for prescriptions, since many highly effective, first-line blood pressure medicines are available in generic form, at a relatively low cost.

Making these changes can not only help you live healthier, but also transform other aspects of your life. Marie now works as a health educator, and believes others can succeed at making these changes in their daily lives, if they are motivated. Im not only teaching it, I lived it, she said recently. Im not telling you anything I didnt experience myself.

Dr. Erin Marcus is associate professor of clinical medicine at the University of Miami Miller School of Medicine. A Doctor's Word is supported by a grant from the Ford Foundation.

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