Reward for Motivated acts = Obesity ?

Link to Science

This is fresh. "Psychologists have found that people who are prone to obesity tend to be highly motivated by rewards. They go out of their way to get the things they want, are willing to take risks, and are more thrilled than the average person when they succeed. Meanwhile, neuroscientists have found that the need for reward is hardwired into various regions of the brain (ScienceNOW, 16 June 2005). When researchers stimulate these regions in the lab, animals overeat, particularly seeking out sweet and fatty foods."

 Just when you are feeling sympathetic for the obese, the psychologist does add that many motivated ppl are not obese so its just part of the reason but not the whole story.