Comparing each to a nonmeditator of the same age and sex, the meditators were breathing an average 1.6 breaths more slowly. And this was while they were just sitting still, waiting for a cognitive test to start. Over the course of a single day that difference in breath rate translates to more than 2,000 extra breaths for the nonmeditators—and more than 800,000 extra breaths over the course of a year. These extra breaths are physiologically taxing, and can exact a health toll as time goes on.

