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Protecting Your Heart

The New Skinny on Weight

There's no doubt that hauling around too much body fat is hard on the heart. But after years of estimating risk with the body mass index (BMI), a 150-year-old formula that roughly calculates body fat using height and weight, doctors are now being encouraged to look more closely at body shape instead. In a 52-country study, researchers compared the BMI with a number of other measures and found that the best predictor of heart attack risk was an individual's waist-to-hip ratio. Pear-shaped people—those who have small waists in relation to their hips—are at lower risk. People with an apple shape, who have wider waists and more fat around the abdomen, have greater reason to be concerned.

To lose that tummy fat, get moving. Diet alone won't do it, but exercise can, even before you see a difference on the scale. Exercise may also make belly fat less risky. In a recent study at Wake Forest University, women who cut calories lost weight and lowered their body fat; those who dieted and added a moderate or brisk walk several days a week also shrank the size of the fat cells around their bellies by 18 percent.

Even if you're thin, you need to exercise. In fact, for maximum heart protection, you need two kinds of workouts: (1) a moderate-intensity activity, such as brisk walking, dancing, or biking on level ground, which increases HDL and lowers LDL; and (2) something a little more active, like jogging, aerobic dance, or biking uphill, to boost heart and lung fitness.

How often? You should aim for at least 30 minutes of exercise a day on most days of the week. But researchers say that you need to push yourself only slightly beyond your comfort level, just enough to raise your pulse and speed breathing.

Why That Oil Should Be Virgin

Besides containing healthy monounsaturated fat, unrefined olive oils (both virgin and extra virgin) have the highest levels of antioxidants called polyphenols. In a recent study, European researchers found that virgin olive oil increased HDL (good) cholesterol more than other oils. But note: All oils are 100 percent high-calorie fat (approximately 120 calories per tablespoon). "So use virgin olive oil to replace other fats in your diet," says Maria Isabel Covas, Ph.D., of the Municipal Institute for Medical Research in Barcelona, Spain.

Online Help

For more information on heart health, visit goodhousekeeping.com, where you can:
* Find out whether your body shape puts you at greater risk for heart problems
* Locate a CPR course near your home
* Learn about the best heart tests for women
* Get info on the risks of secondhand smoke—and how to fight it in your community

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