Mindfulness Interventions to Improve Health Activation, Coping, and Stress Among Childhood Cancer Survivors

This study will explore feasibility and acceptability of using a daily mobile mindfulness app to cope with stress. In addition, feasibility of digital health data collection procedures including wrist-worn devices and ecological momentary assessments will be examined. PRIMARY OBJECTIVES * Determine the feasibility and acceptability of completing the 30-day mobile mindfulness program * Evaluate the feasibility of digital health data collection procedures to detect autonomic nervous system (ANS) activation associated with stress (e.g., electrodermal activity, pulse rate variability, skin temperature) via wearable devices and self-reported ecological momentary assessments (EMA) among adult survivors of childhood cancer in the SJLIFE cohort * Generate preliminary data to estimate the effect size and power needed for an extramurally funded randomized controlled trials (RCT) examining the impact of daily mindfulness mediation on biomarkers of ANS activation, coping, health behaviors, and cardiometabolic outcomes in a cohort of survivors of childhood cancer.

Inclusion Criteria: * Research participant is at least 18 years old at enrollment * Research participant is followed by St. Jude Children's Research Hospital (SJCRH) * Research participant has a diagnosis history of leukemia or lymphoma * Research participant takes part in the St. Jude Lifetime Cohort Study (SJLIFE) * Research participant has elevated psychological stress scores of 6 or greater on most recent SJLIFE questionnaire * Participant can speak and read English Exclusion Criteria: * Research participant currently engages in mindful stress-reduction practices \>2x per week (e.g., tai chi, meditation) * Research participant takes psychiatric medications or medications that impact cardiac functioning, beta-blockers, alpha-blockers * Research participant wears a pacemaker * Research participant has a diagnosis of a congenital heart disease * Research participant has no access to a smartphone * Research participant has elevated pain interference scores (T≥70)