The transtheoretical model is one of the most widely used stage theories because of its complexity and uniqueness. This model has five stage that progress and regress in a spiral fashion as opposed to a linear one. The first stage is precontemplation, when a person has no intention of changing their behavior. Then comes contemplation when a person becomes aware of the problem and thinks about changing. Next there is preparation, when a person makes their intention to change public and is intending to change soon. Then there is action, when a person starts to change their behavior. Finally there is maintenance, which is when the change is successful and a person focuses on continuing their new behavior. This model is most useful for people who
