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Short Bursts of Exercise Are Better Than Exercising Nonstop

Short Bursts of High-Intensity Exercise

Story at-a-glance -

  • People with diabetes who walked continuously for one hour had no improvements in blood sugar, while interval walkers, who alternated three minutes of brisk walking with recovery walking, improved blood sugar disposal by 20 percent
  • Past research has found that interval walkers also enjoyed more weight loss and lower cholesterol levels compared to continuous-paced walkers
  • Another study found that middle-aged adults were able to improve their insulin sensitivity and blood sugar regulation after just two weeks of interval training (three times a week)
  • High-intensity interval training (HIIT) produces a tremendous boost in human growth hormone (HGH), aka the "fitness hormone," and is linked to improved fitness, insulin sensitivity, and blood sugar control
  • When you use HIIT, your workouts need only be a fraction of the time of continuous workouts, and you typically only need to do them a maximum of three times a week (and possibly less)

By Dr. Mercola

When you exercise, are you the type who jogs or uses an elliptical machine at a slow or moderate pace for a good 30 or 45 minutes -- and maybe even reads a book or magazine at the same time? Or are you a devoted walker who can easily spend an hour or more fitting in your daily walk?

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