An authentic sauna is designed to get hot, and the health benefits are generated due to the hot temperature achieved in the room. As your body heats, your heart rate accelerates, leading to all the benefits of aerobic activity. Some of the many benefits include weight loss due to increased calorie burn, improved circulation, pain relief for sore muscles and joints, respiratory enhancement due to the moist steam, and detoxification due to intense perspiration. Additionally, it is a very relaxing and therapeutic experience that helps many people reduce stress and sleep better.