Here is some interesting research studies about how meditation affects your brain waves .
- https://tmhome.com/benefits/benefits-of-meditation-studies/ – Transcendental meditation (TM) has had the most research studies done on it. An extensive list of benefits with links to more details. E.g., blood pressure.
- http://www.psychologytoday.com/em/133067 – See item #1 and others. Brain activity and the immune function is affected by meditation
- http://willmarre.com/blog/give-thanks/ – Meditation slows down the frequency of your brain (from beta waves to more relaxing alpha waves) which reduces the stress hormones.
- http://en.wikipedia.org/wiki/Brain_activity_and_meditation – Meditation is linked to slower frequency brain waves … which are related to emotions.