Does Meditation actually make a difference, or is it overhyped?

A 2014 JAMA Internal Medicine meta-analysis of meditation programs found moderate evidence for improvements in stress, anxiety and depression symptoms, with effect sizes generally small-to-moderate — a conclusion echoed by later meta-analyses of blood pressure outcomes and brain morphometry. Weighing the data: Meditation looks an early-stage, lower-priority area for now — the evidence is only moderate (65/100), and its estimated impact (45/100) is on the lower end too.