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First, the good news: Just 30 minutes of moderate exercise a day can trim body fat, strengthen the heart and fend off disease, according to a report in the Journal of the American Medical Association.
The bad news: 55 percent of Americans fail to get that much physical activity into their day, according to a report released last month by the Centers for Disease Control and Prevention.
People say they are busier than ever and don't have time to exercise. But they're wrong, according to fitness experts.
"This is one of the many myths of exercise: 'A longer workout is a better workout,' " says Kevin Shepard, a personal trainer from Boulder, Colo.
Scripps Howard
