Making use of a far infrared spectrum sauna for weight loss is a somewhat debated issue in popular health circles, despite how popular sauna use in general is. Few people would dare debate against the mere fact that the majority of the weight loss you will see on a scale is primarily just water loss. However, the sauna does significantly raise the heart rate in an attempt to cool the body down. This, like any kind of physical moment, requires energy input and hence guarantees some level of extra burned calories. At least in this respect, a person might be certain that lounging in a sauna necessitates the use of more energy in the form of calories than staying in one place watching TV.