Mindfulness-Based Stress Reduction for Breast Cancer Survivors (MBSR[BC]) Improves Self-Reported Optimism.
Psycho-oncology June 1, 2026 L Forest G Rosenfeld, Cecile A Lengacher, Carmen S Rodriguez et al.
A 6-week mindfulness-based stress reduction program adapted for breast cancer survivors (MBSR(BC)) increased optimism and mindfulness compared with usual care, but did not improve social support. Among 322 post-treatment breast cancer survivors (stages 0–III, average age 56.6) randomized to MBSR(BC) or usual care, self-reported optimism and mindfulness rose significantly more in the MBSR group at 6 and 12 weeks. Social support scores did not differ between groups. The findings suggest that MBSR(BC) may foster adaptive stress responses and some psychosocial benefits, potentially aiding cancer recovery and quality of life.