I have done cold plunging for the last 3 winters and in the summer put ice in the tub! It has changed everything. Pain goes not only from the PMR but other old age aches and pains. LOVE it. and my doc is convinced it is what lowered my cholesterol from HIGH to mid NORMAL! an added perk. Anyway I love it. and have met some great people! I'm 78. had PMR 7 years. down to 1.5mg prednisone.