SAN FRANCISCO -- If you can walk and chew gum at the same time, a new study reveals you could be burning more calories.
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Researchers studied 46 overweight men and women in Japan between the ages of 21 and 69.
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The subjects walked 15 minutes while chewing gum.
Men aged 40 and older burned about two additional calories for every minute walked and women did not have a significant response.
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