Chronic worriers try to predict the future. A Scientific American article on worry points to a study showing that people usually agonize about things that almost never occur. However, the participants in the study often reported that they believed that by over-thinking a possible negative outcome, they had somehow prevented it from happening. Despite this dubious claim, they overlook how much time they waste fixated on the worst possible scenario and stay stuck there, not moving.
The negative effects of worry are not limited to wasted time and energy. According to WebMD, worry can manifest very real physical disorders, including: