The outcome? Changes galore.
Now, it's easy to look at that program and think, "DUH, of course they were healthier," but Michael Mrazek, director of research at UCSB's Center for Mindfulness & Human Potential and lead author of the paper, explains that the changes subjects underwent were widespread and didn't just affect their health.
"We found parallel improvements in more than a dozen different outcomes that truly matter in our lives -- strength, endurance, flexibility, focus, reading ability, working memory, mood, stress, self-esteem, and happiness," he says. "Part of what distinguishes this work is finding such broad improvements across so many different domains, particularly given that the effect sizes were so large. Large effect sizes signify that the results were not only statistically significant but also indicative of substantial changes. Many of these effects were very large -- larger than you tend to find in studies that focus on changing only one thing."