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20-Second Workout: Is 'Fast Exercise' the Best Thing for You?

Michael Mosely argues that high-intensity, short interval training is the healthiest way to exercise
03/25/2014

Transcript for 20-Second Workout: Is 'Fast Exercise' the Best Thing for You?

In an age of instant gratification where we want everything fast, from fast food to fast fashion, we expect the same from our workouts. There was the seven-minute workout. Then the four-minute... See More
This transcript has been automatically generated and may not be 100% accurate.
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