From tough coaches, tough parents, and tough guys to finding real inner strength -- Sink or swim : how we took the wrong lesson from the military -- Accept what you are capable of -- True confidence is quiet. Insecurity is loud. -- Know when to hold em and when to fold em -- Your emotions are messengers, not dictators. -- Own the voice in your head -- Keep your mind steady -- Turning the dial so you don't spiral -- Build the foundation to do hard things -- Find meaning in discomfort

"From beloved performance expert, journalist, and co-author of Peak Performance and The Passion Paradox comes a science-based new definition of toughness-one that focuses on assessing a challenge on a physiological and psychological level rather than fear-based bulldozing-that has radical, holistic implications for any reader"--