The psychological effects of physical activity are often compared to mind-altering substances. The runner’s high mimics a mild cannabis buzz. Synchronized dancing produces a glow not unlike ecstasy. Moving to music provides an adrenaline rush similar to stimulants. I’ve even heard a good yoga stretch described as turning one’s blood into wine. These comparisons, while imperfect, provide a useful framework for understanding both the appeal and benefits of different kinds of movement.
