Entertaiment is a multifaceted field, covering everything from escapism to catharsis and cerebral engagement. It’s a reflection of the complexities of human emotion and thought, which is why it can be interpreted so differently by different people. It also hits at points the brain was evolved to deeply react to, such as backstabbing or murders in the social world. It stimulates the brain to realease seratonin, dopamine and other chemicals. It can be anything from movies and television to music to sports to reading or playing video games.