In one compelling study, Danish researchers randomized patients with type 2 diabetes into two groups: both were given advice on how to eat a healthy diet, but one group also labored through five or six 30- to 60-minute-long sessions of aerobic exercise a week plus two or three weight sessions per week. After a year, half of those who exercised were able to eliminate their diabetes medications, and another 20 percent were able to reduce their medication levels. Further, the more they exercised, the more they recovered normal function. In contrast, just one-quarter of the dieters were able to
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