CardiovascularZazen FIR Repeated Thermal Therapy Improves Impaired Vascular Endothelial Function Repeated Thermal Therapy Improves Impaired Vascular Endothelial Function 2002 Repeated Sauna Therapy Increases Arterial Endothelial Regular thermal therapy may promote insulin sensitivity Far Infrared Sauna for the Treatment of Congestive Heart failure Acute Hemodynamic Improvement by Thermal Vasodilation in Congestive Heart Failure Effect of Repeated Sauna Treatment on Exercise Tolerance and Endothelial Function Repeated sauna therapy reduces urinary 8-epi-prostaglandin F(2alpha) Repeated waon therapy improves pulmonary hypertension Beneficial Effects of Waon Therapy on Patients with Chronic Heart Failure Do sauna therapy and exercise act by raising the availability of Tetrahydrobiopterin?