Entertaiment is anything that entices and amuses people. It can be a clown at a birthday party, a Broadway show, or even your friends fighting over the last potato chip. Entertainment can stimulate the brain to release seratonin and dopamine. It also hits on themes that the human mind was evolved to deeply react to. This include backstabbing, murders and other themes in our social world.
It is the underlying reason why so many of us like to watch movies and play games. They give a much-needed break from the mundane responsibilities of work and home. It can help bring families closer together, and allow them to grow in love and happiness.