Minnesota Public Radio slideshow:
Fitness, not fatness, is key to health
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A 30-minute walk every day is enough activity to increase almost everyone's health, even if they don't lose much weight. (MPR Photo/Cara Hetland)

A 30-minute walk every day is enough activity to increase almost everyone's health, even if they don't lose much weight.

(MPR Photo/Cara Hetland)
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