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Want to cut the length of your workout while maintaining or even increasing the benefits? Try interval training, a type of cardiovascular workout in which you alternate bursts of peppier exercise with slower-paced recovery periods.
Intervals make you work more efficiently: Your overall intensity is greater, so the length of your workout can be cut by about 20 percent. Plus, a growing body of evidence suggests that this approach yields health benefits comparable or superior to traditional exercise.
