Surprising to some and maybe not to others, a new study has shown that 8 weeks of mindful meditation has measurably positive changes to the brain. "Participating in an eight-week mindfulness meditation program appears to make measurable changes in brain regions associated with memory, sense of self, empathy, and stress.?
Previous studies from Lazar’s group and others found structural differences between the brains of experienced meditation practitioners and individuals with no history of meditation, observing thickening of the cerebral cortex in areas associated with attention and emotional integration. But those investigations could not document that those differences were actually produced by meditation.
Full article and the page on Harvard.edu.