"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