Parts of the cortex grow thicker in some meditators, according to a study of 20 people who regularly practice Buddhist insight meditation. This is kind of a brief but fascinating press release posted to EurekAlert. The thickening of gray matter occurred in specific regions of the cortex related to sensory and internal perceptions. Another interesting finding is that meditation might retard changes in the frontal cortex brought about by aging. Although the people in the study meditated 40 minutes a day, they were not monks, just ordinary people. The more I learn about the benefits of meditation, the more I think it’s time to start.