Need to get in shape? Less just might be more.

Good news for procrastinators, the overworked and the overbooked—kind of.
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Good news for procrastinators, the overworked and the overbooked—kind of.
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We’re not sure if this helps or hurts us in our quest (ok, often a battle) to stay fit, but recent research seems to indicate that you don’t need to grind it out daily to get in shape—if you’re willing to pump up the intensity of your workouts. The magic, according to scientists, is in interval training, where you push yourself to max effort and heart rate for shorter bursts of time. Now, if you use this news as a handy excuse to cut back on your workout schedule but never follow through with the whole interval thing—yeah, that’s a trap we’re also trying to avoid. The New York Times fitness blog gives you the details.