We have all had the experience of worrying about something at some point in our lives. Some of us have a habitual tendency to worry, and all of us have known someone who is a chronic worrier. Worry is an extension of fear and can be a very draining experience. In order for worry to exist, we have to imagine that something bad might happen. What we are worrying about has not happened yet, however, so this bad thing is by definition a fantasy. Understood this way, worry is a self-created state of needless fear. Still, most of us worry.