When it comes to heat, sitting in a sauna, steam room, sauna suit, or traditional sweat lodge and sweating buckets may not seem like the greatest way to spend the morning, but it might actually save your life. In addition to reducing all-cause mortality, hyperthermic conditioning, as it is called, helps blood flow to skeletal muscle and surrounding tissue, supporting circulation and muscle growth. It can help train your cardiovascular system and lower your resting heart rate; it can even assist with detoxification, since sweat transports minerals, both good and bad, out of the body.