In simple terms, the act of meditating increases the thickness of grey matter. It’s the same as if you were going to the gym and building a muscle. Meditation quiets down the nervous system and reduces anxiety and is now often prescribed by doctors as a number one stress reduction technique to help lower blood pressure and improve your immune system.
Research from Harvard Body Mind Medical School states that, “Meditation produces changes in brain activity. It also can lower your heart rate, blood pressure, breathing rate, oxygen consumption, adrenaline levels, and levels of cortisol, a hormone released in response to stress.”
In another study coming out of University of Wisconsin-Madison, meditation produced lasting positive changes in both the brain and the function of the immune system. The findings suggest that meditation, long promoted as a technique to reduce anxiety and stress, might produce important biological effects that improve a person’s resiliency.