A Text Message Intervention to Promote Health Behaviors in Cardiac Risk Conditions

Participants will undergo a three component intervention consisting of (1) daily, adaptive text messages related to Positive Psychology or health behaviors, (2) twice weekly text messages related to a specific health behavior goal, and (3) three brief check-ins (at baseline, week 4, and week 8 of the intervention) with a study staff member to discuss progress towards health behavior goals. During the brief check-ins, the study staff member will inquire about: (1) medical conditions, (2) adherence gaps, (3) personal health goals (including weight goals), (4) motivation, self-efficacy, and barriers to reaching health goals, (5) preferred activity types (e.g., walking), and (6) sources of sedentary time (e.g., computer, TV). This information will be added to the algorithm for each individual and we will deliver tailored daily text messages for our participants.