"I 100% agree that gratitude is a game changer for the sake of some people out there going, oh, come on, John," he says. "What I want you to do is try to answer the why and the what." He asks: Why would going around thinking about what I'm grateful for? Why? Deeper than just if you're blessed or not stressed,. But like neurologically and what's happening in your body. And then secondly, I'd like to hear the what, like specifically what your family noticed. What became different in your leadership?"