By Dr. Mercola
By now you may have heard the good news: exercising at very high intensity interspersed with periods of moderate rest, a program known as high-intensity interval training (HIIT), is one of the best ways to get in shape.
By now you may have heard the good news: exercising at very high intensity interspersed with periods of moderate rest, a program known as high-intensity interval training (HIIT), is one of the best ways to get in shape.
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