The active treatment group is instructed to use the app-guided "body scan" exercise daily for six days per week. The waitlist group is instructed that the research intervention will be made available to them in four weeks time. On a weekly basis, all subjects complete a Brief Pain Inventory scale. At the end of four weeks, subjects again complete a Brief Pain Inventory as well as the questionnaires measuring secondary outcomes. Upon completion of the control condition, waitlist subjects are invited to begin using the "body scan" exercise as described above. From this point forward, subjects receive the same protocol as the active treatment group. This study involves no face-to-face contact between participants and study investigators/staff.