Yes, but only for informational purposes.  "98.6 – Ideal Body Temperature as the Secret to Optimum Health" by Dr. Uwe   http://www.uwekarstaedt.de/wp-content/uploads/2016/05/Extract-98.6-F-Ideal-Body-Temperature-as-the-Secret-to-Optimum-Health-by-Uwe-Karstaedt.pdf    "The BioMat Book – Far-Infrared and Vibrational Medicine" by Dr. Circus   http://drsircus.com/light-heat/ideal-body-temperature/    “4-th Treatment For Medical Refugees or Thermo therapy in 21-st century” by Dr. Nobuhiro Yoshimizu a famous Japanese oncologist  http://www.bio-mat.com/4th_Treatment_for_Medical_Refugees.pdf   “The Ion effect” by Fred Soyka*   https://www.amazon.com/Effect-Fred-Soyka-Alan-Edmonds/dp/0553143883 "PEMF - The Fifth Element of Health: Learn Why Pulsed Electromagnetic Field (PEMF) Therapy Supercharges Your Health Like Nothing Else!” by Bryant A. Meyers  https://www.amazon.com/PEMF-Element-Electromagnetic-Therapy-Supercharges-ebook/dp/B00EU19OSE  The health benefits of far infrared therapy, thermal therapy, PEMF, red light, and negative ion therapy have been extensively studied for over 50 years by doctors, scientists, and research groups. Each of them has proven healing properties and promotes a healthy lifestyle, aiding a variety of health conditions.