Saunas are extremely beneficial as they stimulate detoxification pathways. Some research suggests that FIR saunas promote a leaching of spirochetes from tissues and into the blood stream where the herbs are more able to kill them off. Daily saunas are highly recommended when recovering from chronic illness.
FIR saunas operate at a much lower temperature than Swedish saunas, making them more comfortable to those who have strong heat intolerance. They detoxify the tissue much more deeply and target both fat and water soluble toxins. You sweat just as much, but do not get as hot as a traditional sauna.