Does More Sweat Mean More Weight Loss? The Experts Weigh In

"Sweating isn't the best measure of workout effectiveness," Nagel said. "Sweating is simply the body's cooling mechanism, and everyone's internal air conditioners work a bit differently. Some people end up red-faced and dripping in sweat after a brisk walk, while others look cool as a cucumber after their 5 a.m. bootcamp class!" I, for one, definitely fall into the former camp — I immediately start sweating during the warmup portion of a fitness class.