New program aims to get seniors off the couch using 'behavioral economics' tricks

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * 1\. All sex and gender inclusive 2. Age 65 and over 3. Cognitive telephone screening via the 20-point Tele-MoCA with a score of 16 or higher. 4\. Score on the PHQ-9 is between 2-14. 5. The participant agrees to attend all the meetings for the duration of the study, and to practice home assignments. 6\. Adequate command of English to be able to participate in the group sessions. 7. Current weekly duration of exercise\* ≤60 minutes/week. (\*Exercise: a specific type of physical activity \[PA\], which is structured, and has the intention of improving either health or fitness. Exercise differs from PA, which includes any physical effort, however without the intention of improving health or fitness \[e.g., driving, cleaning, standing, etc. are examples for PA, not exercise\]) 8. Participants have interest in increasing their weekly time of physical activity, and willingness to practice skills learned during the program. 9\. Agree to participate in any of the study groups according to a randomized allocation. Exclusion Criteria: * 1\. Acute medical condition that requires treatment. 2. Existing medical conditions that contra-indicate or limit physical activity (e.g., post-surgery, recurrent falls, etc.) 3. Unstable psychiatric condition that requires acute care. 4. Current use of psychoactive medication that might compromise balance or induce risk when performing physical activity (e.g., high dose of sedative medications) 5. Current use of recreational drug use (must be free of substance use for 12 months). 6\. Patients currently involved in routine intensive exercise\* \> 1 hour/ week. 7. Lack of interest to increase their daily time of physical activity 8. Refuse to participate in any of the study groups according to a randomized allocation. 9\. PHQ-9 score less than 2, or greater than 14.