Study suggests greeting strangers can boost happiness levels

A team of psychologists at Sabanci University, in Turkey, working with a colleague from the University of Sussex, in the U.K., has found that people simply saying “hello” to strangers they encounter can lead to increased life satisfaction. In their study, reported in the journal Social Psychological and Personality Science, the group queried two large groups of people regarding their encounters with strangers and how they graded their own level of life satisfaction.