Researchers at UC San Diego are conducting a research study to improve loneliness and social isolation in older adults in San Diego. This study involves participating in a program that has been designed to reduce loneliness and social isolation by helping you to engage socially. If you meet criteria for this study and agree to be part of the study, you will meet one-on-one for 6 weeks with a study therapist via Zoom, a HIPAA-compliant videoconferencing program. These six, 60-minute sessions will include training to increase positive emotions and your pursuit of social activities. Before and after treatment, study staff will meet with you to complete questionnaires related to loneliness, physical and mental health.