How much of an athlete's performance is dependent on their mental toughness? Chances are you already know mental toughness plays an important role in an athlete's ability to reach their full potential, but how can coaches help grow athletes mentally as well as physically?Dave sat down with Joanna Zeiger, triathlete World Champion, Olympian, the author of The Champion Mindset: An Athlete's Guide to Mental Toughness, and distinguished researcher in the field of mental toughness, to discuss her journey as an athlete and how it inspired her to help other athletes reach their goals.