Jacqueline Olds M.D. and Richard S. Schwartz M.D. are both Associate ClinicalProfessors of Psychiatry at Harvard Medical School, with particular interests inlasting relationships, marriage, loneliness and social isolation. In addition toprofessional articles, they have written three books for general audiences:Overcoming Loneliness in Everyday Life (Birch Lane Press, 1996), Marriage in Motion:The Natural Ebb and Flow of Lasting Relationships (Perseus Books, 2000), The LonelyAmerican: Drifting Apart in the 21st Century (Beacon Press, 2009). They each serveon the faculties of the Massachusetts General Hospital-McLean Hospital CombinedResidency Program, the Boston Psychoanalytic Institute and Society, and thePsychoanalytic Family and Couples Institute of New England. They also created thefirst wearable tracker to monitor and “dose” bright light therapy for the treatmentof depression and other conditions. They are married to each other, with twochildren and four grandchildren.