Weight and fat are often used together, but are not interchangeable. Being overweight as a result of muscle gain in many physically fit people is healthy. However, being overweight as a result of too much body fat is dangerous to one's health. Overfat people are more likely to develop heart disease and stroke. Excess weight caused by fat increases strain on the heart. Obese people have a higher than normal risk for a heart attack.

The Obese condition:

• raises blood cholesterol and triglyceride levels

• lowers HDL (the "good" cholesterol is linked with lower risk)

• raises blood pressure and

• can induce diabetes (The danger of heart attack is especially high for people with diabetes.)

The percentages of fat, muscle, and bone in the body provide an overall view of your health and fitness in relation to your weight, health, and age. The average healthy body fat range for men is 13-17 percent. For women, the average healthy range is 20-27 percent. General health and heart risks increase when body fat exceeds these ranges. Obesity is defined by a body fat level above 25 percent for men and above 31 percent for women.

Excessive overweight caused by becoming overfat results mainly by not getting enough exercise and taking in too many calories that are stored by the body instead of burned. This puts the heart at great risk in many ways.

Combining a healthy diet with a regular exercise program is the best approach to losing body fat and helping your heart. People who weigh too much should try to lose 1 to 2 pounds per week. Routine exercise helps use up stored body fat and reduce the risk of heart disease. Be sure to check with your healthcare provider before starting a new exercise program.

For more information, contact your local chapter of the American Heart Association or call (800) 242-8721.

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