As a person who enjoys setting and striving toward goals, I enjoyed reading the Science Daily article, http://www.sciencedaily.com/releases/2011/02/110208131529.htm#
This finding builds upon other recent research that highlights the benefits of periodically taking diversions to improve your level of focus. I am a big advocate of recovery time, including taking brief breaks. Recharging oneself enhances overall efficiency and effectiveness. I encourage you to take charge of improving your performance by stepping aside—or better yet, outside!

Speaking of exceptional focus and peak performance, way to go Ray Allen!