Entertaiment is a very important aspect to human life. It allows us to realease seratonin, dopamine and other chemicals that make humans happy. It also hits at the topics that our brains was evolved to deeply understand in order to understand the social world we live in. Examples of these are murders, backstabbing and other themes in the social world.
Entertaiment can be done on a personal level for just one person or for an entire society or event. It can include movies and TV, music, sports, games, reading, and the visual arts.