Hot Workouts vs. Cold Workouts

Hot Workouts vs. Cold Workouts

Sure, working out in the extreme cold or the extreme heat make you mentally tough. But when it comes to burning calories and performing faster, which direction should you spin the thermostat?

Writing for Men’s Fitness, I spoke to Michael Joyner, M.D., a marathoner and specialist in exercise physiology, about the scientific evidence for the benefits of working out in extreme conditions. Here’s what he told me.