All In Podcast 142: Craig Manning: Mastering the Mind Did you know research has shown that people who can control their minds have the greatest success in life? In fact, mental strength is a stronger indicator of success than IQ or the economic status of the family one grows up in. So how do we develop mental strength and what does it have to do with faith? Today, we talk with Latter-day Saint Dr. Craig Manning, who has helped some of the greatest athletes in the world answer these questions.