Does Stress Reduction actually make a difference, or is it overhyped?

Mindfulness-based stress reduction (MBSR) and related mind-body practices are supported by multiple meta-analyses, including one on physiological stress markers and another examining the psychological mechanisms behind MBSR's benefits, plus a randomized controlled trial showing improved sleep and emotion regulation in depressed elderly adults. Weighing the data: Stress Reduction looks potentially significant but still under-researched — its estimated impact on longevity is rated high (55/100), while the evidence itself is only moderate (68/100).