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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 body gets too hot, beyond a temperature that’s healthy, little glands in your skin secrete droplets of moisture. Those droplets evaporate and help lower your body temperature. It's just your body's way of keeping itself cool. While exercising, your muscles generate heat, raising your body's temperature and causing you to sweat. Sweating more during a workout doesn't mean that you're burning more fat. It means that your body temperature is high and your sweat glands are trying to cool you down. Sweating a lot can shed excess water weight. However, losing water weight is only temporary. Every pound of weight you shed while working out is equal to two cups of water, or sweat. It will be replenished the next time you take a drink of water. Don't feel like you have to end every workout dripping in sweat to accomplish your fitness goals. Don't sweat it. THIS VIDEO MUST NOT BE EDITED FOR LENGTH TO COMBINE WITH OTHER CONTENT