Personal Health New Thinking on How to Protect the Heart

The well-established risk factors for heart disease remain intact: high cholesterol, high blood pressure, smoking, diabetes, abdominal obesity and sedentary living. But behind them a relatively new factor has emerged that may be even more important as a cause of heart attacks than, say, high blood levels of artery-damaging cholesterol.

That factor is C-reactive protein, or CRP, a blood-borne marker of inflammation that, along with coagulation factors, is now increasingly recognized as the driving force behind clots that block blood flow to the heart. Yet patients are rarely tested for CRP, even if they already have heart problems.
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Among foods that help to reduce the inflammatory marker CRP are cold-water fish like salmon, tuna and mackerel; flax seed; walnuts; and canola oil and margarine based on canola oil. Fish oil capsules are also effective. Dr. Ozner recommends cooking with canola oil and using more expensive and aromatic olive oil for salads.

Other aspects of the Mediterranean diet — vegetables, fruits and red wine (or purple grape juice) — are helpful as well. Their antioxidant properties help prevent the formation of artery-damaging LDL cholesterol.

Other Steps

Several recent studies have linked periodontal disease to an increased risk of heart disease, most likely because gum disease causes low-grade chronic inflammation. So good dental hygiene, with regular periodontal cleanings, can help protect your heart as well as your teeth.

Reducing chronic stress is another important factor. The Interheart study, which examined the effects of stress in more than 27,000 people, found that stress more than doubled the risk of heart attacks.

Dr. Joel Okner, a cardiologist in Chicago, and Jeremy Clorfene, a cardiac psychologist, the authors of “The No Bull Book on Heart Disease” (Sterling, 2009), note that getting enough sleep improves the ability to manage stress.

Practicing the relaxation response once or twice a day by breathing deeply and rhythmically in a quiet place with eyes closed and muscles relaxed can help cool the hottest blood. Other techniques Dr. Ozner recommends include meditation, prayer, yoga, self-hypnosis, laughter, taking a midday nap, getting a dog or cat, taking up a hobby and exercising regularly.