It is a normal human tendency to dwell on thoughts when something goes wrong, such as the death of a loved one or a goal that we wanted to achieve but didn’t. But some people, like Mr. Molloy, can’t stop thinking this way even when they desperately want to.
Scientists increasingly believe that cycles of uncontrollable worry or rumination may be an important mechanism underpinning a range of psychological disorders, such as depression, anxiety, eating disorders and substance abuse, and may even make them worse.
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