A preoccupation is defined as an engrossing or near obsessive interest in a topic. In everyday use it is used to mean having difficulty in focusing on a topic because of being distracted by another matter or subject. In psychology this term can be used to describe the mindset of fixation on health, body weight, or shape that leads to conditions such as hypochondriasis, eating disorders, or excessive exercising. It is also seen in some computer users and gamers who seem unable to leave their computer and interact with people.