Entertainment provides a break from daily worries and responsibilities. It helps to refresh the mind and preserve emotional health and social connections. Entertaiment is often associated with amusement, but it may also have a deeper purpose such as education or social commentary. Entertainment can be as simple as an individual choosing a movie from an ever-expanding array of pre-recorded products; or it can be a feast for two; or a performance intended for thousands; or even for the entire world. Entertainment is an ever-changing and evolving art form. It often hits on themes that the human brain was evolved to react deeply to, such as murders and social backstabbing.