Scientists and researchers have found many relationships between our health and our happiness -- it seems that the two are not mutually exclusive. Dr. Laura Kubzansky is a professor of social and behavioral sciences and co-director of the Lee Kum Sheung Center for Health and Happiness , a new center at the Harvard T.H. Chan School of Public Health. Her task, in the coming years, is to understand the relationship between psychological well-being and physical health.