Mindfulness-based programmes reduce psychological distress (anxiety and depression) in community adults who volunteer to participate, with a small to moderate effect size. The analysis of 13 randomized controlled trials with 2,371 participants from 8 countries found a standardized mean difference of -0.32, with high confidence in the result. The effect was not clearly influenced by participants' baseline distress level, gender, age, education, or dispositional mindfulness. More research is needed to understand why outcomes vary between individuals.
Law enforcement officers face high stress that harms mental health and can lead to aggression and excessive force. A multi-site, randomized, single-blind clinical feasibility trial tested mindfulness-based resilience training (MBRT) against stress management education and a no-intervention control. The study aimed to refine protocols for a future full-scale trial. Recruitment, retention, and acceptability of MBRT were high, and assessment and intervention protocols were delivered with fidelity. Several physiological and self-report measures showed responsiveness to change. These results prepare for a larger trial testing whether MBRT improves officer health and resilience and reduces aggression and excessive use of force, benefiting communities.