Again very relevant to meditation, point 5 :

http://www.theguardian.com/lifeandstyle/2015/feb/15/five-ways-to-improve-your-brainpower-norman-doidge?CMP=fb_gu

“By the time I had finished The Brain That Changes Itself, there were significant studies, which no one disputes, which show major changes in the structure of the brain of Tibetan monks, for example, brought about through the practice of meditation. I suppose it is not really a hard sell once you have grasped that the brain is plastic, that someone who has spent 30,000 hours meditating might actually have changed the structure of their brain. I mean, a London taxi driver can change his brain by studying routes through the city for a year or two.”

Norman Doidge: the man teaching us to change our minds
Do you believe you can think yourself well, changing the very structure of your brain over time through rigorous training? Norman Doidge does…
http://www.theguardian.com/science/2015/feb/08/norman-doidge-brain-healing-neuroplasticity-interview?CMP=fb_gu

Not TM & a tiny study, but significant !
Building on their earlier work that suggested people who meditate have less age-related atrophy in the brain’s white matter, a new study found that meditation…
http://www.sciencedaily.com/releases/2015/02/150205142951.htm

The David Lynch Foundation is doing some really good work in the States for war veterans who have suffered from the trauma of war.
Real PTSD Relief for our Veterans
http://davidlynchfoundation.org/

“The first 15 years I was in the army, really a nice place to be, but I didn’t have no idea that it was gonna turn…

“I did 20 minutes in the morning and 20 minutes at night, and I would say within 14 days or three weeks, I got to the point where I could really disconnect my mind … and learn how to focus more and calm down,” Schwarzenegger says.

http://www.businessinsider.in/Arnold-Schwarzenegger-says-a-year-of-practicing-Transcendental-Meditation-in-the-70s-changed-his-life/articleshow/46125489.cms

March 2014 issue of InStyle magazine,
On chilling out: “I like to meditate, Transcendental Meditation usually. I took it up in my early 20s and I learned the benefits. I try to do it every day. A typical session is 20 to 30 minutes. I even use a meditation app on my phone that has a timer and also shows you on a map all the people that have logged in that are meditating at that very moment.”