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The fact that scores of people resolve to start an exercise regimen in the new year and then slide back into their old couch potato ways is common knowledge. But why is this so? Researchers in France, who published their findings in the journal Biological Psychiatry, contend that a protein called the CB1 cannabinoid receptor in a region of the brain associated with motivation and reward systems controls whether or not a person will voluntarily engage in physical activity….

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Why Exercise Resolutions Are Hard to Keep

A gene identified by scientists could explain why some people are more likely to develop diabetes than others, The Press Association — the national news agency of the UK and