This document summarizes research on the expected outcomes of Mindfulness Based Stress Reduction (MBSR) training. It finds that while MBSR is generally linked to positive changes like reduced depression, anxiety, and increased empathy, there is limited neurological evidence to explain these outcomes. The document reviews studies on modified MBSR programs and their efficacy, as well as subjective outcomes like improved sleep quality and increased ability to accept pain. Overall, the research suggests MBSR shows promise but more long-term studies are needed to understand its full structural and functional impacts.