Busting, a Common Myth About Sweating, and Exercise. According to Lifehacker, how much you sweat is not a reliable indicator of weight loss, . fitness level or how hard you are working out. When your ...

Sometimes, you get to the gym in high spirits, ready to sweat it out. But other days, you might be pressed for time, squeezing in a workout between brunch and dinner plans. Or maybe you start to feel ...