The most recent research in the University of Atlanta, USA, shows that the corpus area in the brain is specially responsible for people who have enrolled successfully after work. Researchers conducted comparison observations for the striped bodies of the two groups. It was found that the striped body will be very active after people pass their physical strength or brain force, such as athletes win victory in a hard game, or students Get good results after studying. But for other things that don't work, such as the lottery winning or inherit a big legacy, this part of the brain has no response. The researchers said that efforts have been greatly important for the feeling of happiness in the brain. The result of working hard can mobilize more brain structure to participate in activities, thus giving people more happiness.