Want to know the secret to boundless energy and resilience? Exercise. But when I say exercise I'm not just talking about the kind you do in the gym or at the park. I'm talking about thermal exercise, an equally important form of exercise if a growing body of research is any indication! Why might this be? For the vast majority of our evolution as humans, we didn't have climate control. Chronic comfort undermines incredibly advantageous algorithms embedded deep in our genome that helped us survive early on and that today help us become sharper, happier, and stronger when we activate them. I'm doing a few rounds of contrast therapy today, in the form of cold water immersion followed by 180 degree sauna, which helps to mobilize lymph fluid (the body's cleaning fluid), send nutrients to deep tissue, flush out toxins, increase metabolic rate, enhance insulin sensitivity, boost neuroplastocity, and more. I feel like a million bucks after doing this which helps fuel my productivity and creativity. What fuels yours?