Personal development or self-improvement consists of activities that develops a person's capabilities and potential, enhance quality of life, and facilitate the realization of dreams and aspirations. Personal development may take place over the course of an individual's entire lifespan and is not limited to one stage of a person's life. It is not restricted to self-help and can include official and informal actions for developing others in roles such as a teacher, guide, counselor, manager, coach, or mentor.