……Lin et al. have carried out a well-designed clinical study that used far-infrared radiation to prevent stenosis and prolong function of arteriovenous fistulas, and they have reported very interesting and noteworthy results. They applied far-infrared radiation from 25 cm above the surface of the fistula for 40 min during each thrice-weekly hemodialysis session. No patients complained for any adverse effects, such as skin burn or reaction to the radiation, at any point during the study……