From the Tim Ferris Interview of Jerry Seinfeld: 

Exercise, weight training, and Transcendental Meditation. I think I could solve just about anyone’s life, and I don’t care what you do, with weight training and Transcendental Meditation. I think your body needs that stress, that stressor. And I think it builds the resilience of the nervous system, and I think Transcendental Meditation is the absolutely ultimate work tool.