Preventing Heart Disease: What Women Need to Know
Extensive medical research has identified the major heart disease risk factors for women. Some, like aging or heredity, are things you can't change. But there are many other factors affecting women that you can do something about. According to Richard Pasternak, MD, FACC, director of preventive cardiology at Massachusetts General Hospital in Boston and associate professor of medicine at Harvard, "There is compelling evidence from studies and clinical trials that coronary heart disease is largely preventable."

Dr. Pasternak emphasizes you should know your heart disease risk as an individual. "Talk with your doctor to assess your specific level of risk. If your risk is high, find out which risk factors you should concentrate on. Finding out you're at low risk, on the other hand, can eliminate a lot of worry."

Smoking. Cigarette smoking is the most important preventable cause of premature death in the country. Women who smoke increase their heart disease risk two to four times. If you smoke, quit. If you don't smoke, don't start. Evidence also indicates that exposure to secondhand smoke at home or work increases your risk and the risk of respiratory disease in your children.

Physical inactivity. Physically active women have a 60 percent to 75 percent lower risk of heart disease than inactive women. Try to get at least 30 minutes of moderate-intensity exercise (like brisk walking) every day. This can even be performed in intermittent or shorter bouts (at least 10 minutes) of activity throughout the day. When it comes to exercise, the more the better!

Obesity and overweight. Being more than 30 percent over your ideal body weight makes you more likely to develop heart disease, even with no other risk factors. New guidelines recommend your waist circumference should be less than 35 inches.

Stress and depression. Studies show your body's physiological reaction to high levels of sustained stress — increased blood pressure, an outpouring of adrenaline, and other changes — makes you more susceptible to serious disorders like heart disease. Depression, more likely suffered by women, is also dangerous to the heart in both women and men.

High blood pressure. High blood pressure increases the hearts workload, weakening it over time. It also increases the risk of stroke, heart attack, kidney failure and congestive heart failure. Aim for a blood pressure of under 140 systolic (top) and 90 diastolic (bottom), with 120/80 being optimal. Have your blood pressure checked at least every two years.

High cholesterol and high triglycerides. Women with total cholesterol over 200 are more susceptible to heart disease. The goal is to have an LDL ("bad" cholesterol) lower than 160, HDL ("good" cholesterol) over 45, and to keep triglycerides to 200 or even lower. Triglycerides are emerging as a significant predictor of risk in women. If yours are high, talk with your doctor about what to do.

Diabetes. "Diabetes is a more powerful risk factor in women than men," says C. Noel Bairey Merz, MD, FACC, director of the preventive and rehabilitative cardiac center at Cedars-Sinai Medical Center in Los Angeles. Regardless of her age, a woman with diabetes has a risk of heart disease three to seven times higher than a non-diabetic woman. To help delay and control diabetes, maintain a healthy weight, stay active, and reduce dietary fat and calories. If you have diabetes, work with your doctor to control your risk factors.

Estrogen replacement therapy (ERT). The risks (and benefits) of ERT are a little less well-defined, although studies are in progress that should help clarify this area. Currently, this decision should be made between you and your doctor.

Why exercise?

Regular physical activity and maintaining the proper weight are essential to reducing your risk of heart disease and improving quality of life.

  • Studies have shown repeatedly that exercise improves your heart health. "It can cut your cholesterol and triglyceride levels, raise your HDL cholesterol, and lower your blood pressure," says Dr. Bairey Merz.
  • Exercise fights the aging process. The ability of muscles and other tissues to utilize oxygen decreases naturally as you age. Exercise can slow the rate of loss. Basal metabolic rate (the rate at which calories burn at rest) also drops as you get older. But regular exercise can compensate, helping you burn more calories, even at rest.
  • Bones, muscles, and the fibers that tie them together work better when they're used. Exercise can help prevent injuries — today and tomorrow.
  • Exercise and eating go together. "Exercise helps you process your food, and it allows you a high enough calorie intake to ensure proper nutrition — without putting on weight," explains Dr. Limacher.
Are you getting enough fluids when you exercise?
"Most women don't drink enough fluids when exercising," says Dr. Pasternak. "You should drink fluids before you get thirsty. By the time you feel thirsty, you may already be dehydrated." To prevent dehydration:
  • 2 hours before exercise: Drink at least 16 oz.
  • 1 hour before: Drink at least 8 oz.
  • During exercise: Drink at least 4 to 8 oz. every 15 to 20 minutes.
  • After exercise: Drink at least 16 oz.

Drink water or fruit juice, such as orange juice or grapefruit juice. Avoid caffeinated beverages. If you're watching your diet, orange juice is fat-free, cholesterol-free, and nutrient-rich.

Sneak exercise into your life
If you have trouble fitting in long walks or regular exercise, try "sneaking" it in:
  • Walk to work if you're close enough. If you're not, park your car one-half mile away.
  • Get off the bus before your stop and walk the rest of the way.
  • At the mall, park your car far from the entrance.
  • Use your bike for errands.
  • Take the stairs instead of the elevator.

Coping with stress

Women are under more stress than ever, experts say, and it's certainly not heart-healthy. Here are some ways to relieve it:

Take a moment to relax. Stress is most damaging if it's unrelenting. Even a few moments of relaxation — mini-breaks, stretching, talking with a friend — can help.

Talk it out. Poor communication is often a source of stress. If you have concerns about your job, your workload, your partner, or your children, discuss them.

Exercise helps. Exercise strengthens your heart so that it can withstand stress. Aerobic activities like tennis, volleyball, running, swimming, and walking are ideal.

Make social connections. Not having others to talk with only adds to the stress in your life, and can even lead to depression. Become involved in church, social or volunteer activities.

When to see a cardiologist

Any time you have a significant heart or related condition, you may require the attention of a cardiologist, a doctor who is highly trained in diseases of the heart. "Women often report that symptoms of heart disease began as pain in an adjacent area, such as an arm, shoulder, the back, or stomach, not in the chest," advises Dr. Pasternak. Symptoms like shortness of breath, chest pain, or dizzy spells often require special testing. Most importantly, cardiologists are experts in diagnosing and treating heart attacks, heart failure and other heart-related conditions.

Your primary-care physician may recommend a cardiologist or you can choose one yourself. If you suspect you have a heart problem, visit your doctor.

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