Low Dose Participants randomized to this group will undergo a protocol consisting of 1 hour of sauna therapy per day, for a minimum of 3 days per week, completed in 3 weeks or less (21 days). (9 total sessions, 9 hours of sauna). Participants will be able to schedule visits on any of 7 days per week. Maximum flexibility in hours of operation as well as flexibility in which days are attended will be utilized to increase likelihood of retention. Participants will be able to attend 9 consecutive sessions, should they wish.