Entertaiment is the act of keeping people amused. This can be achieved through various means such as films, television, books, music and live entertainment. It is a large industry which has developed over time with the advent of technology and has impacted several sectors such as marketing and e-commerce. Entertainment can be a powerful force which stimulates the brain to realease seratonin and dopamine. This is because it often hits on themes which the human mind was evolved to react deeply to such as social backstabbing and murders. This is due to the fact that most entertainment is focused on the social world which humans were evolved to understand.