By Dr. Mercola
The most recent research shows that relatively short bursts of intense exercise—even if done only a total of a few minutes each week—can deliver many of the health- and fitness benefits you get from doing hours of conventional exercise.
By doing just three minutes of High Intensity Training (HIT) a week for four weeks, you could see significant changes in important health indices.
At some research centers, participants were able to improve their insulin sensitivity an average of 24 percent with as little as three minutes of HIT per week. >