Scientific evidence now suggests that one can boost up one's mood by training the brain to do so. People who are content are believed to live longer, form healthy relationships and are less inclined to turn to crime, psychotherapist Christine Webber writes in the Daily Mail. According to Webber, recent developments in neuroscience have found the brain forms new neural connections in life, and when a person is joyful, that part of the brain structure is found to become active that registers happiness. Italian psychiatrist Giovanni Fava, in his study, encouraged his patients to keep a diary and record in it all their happy moments. He found that once people wrote down details of positive moments, happy feelings took root in their minds, Webber noted. According to some researchers, individuals who are optimistic tend to deal with life's downturn better than those who are less upbeat.