Sauna supposed to be good for health. But just for comparison, does it really matter how we achieve sweating? Let's say: 1. By running. 2. By sitting in a car/room without AC in the summer heat. 3. In a sauna. Is there any physiological difference between these methods? People could save lots of money just by not having AC, instead of buying a sauna... Please Register or Log in to view the hidden image!