Is Far Infrared frequency important for an effective Far Infrared sauna?
Infrared frequency relates to the surface temperature of the object emitting it, as stated in Wien’s Law of thermodynamics which tells us that objects of different temperature emit spectra that peak at different wavelengths. Scientific research undertaken by Physiotherm has shown that what is most critical in maximising the beneficial effects of FIR heat is not the frequency of IR wavelength but the level of IR intensity on the surface of the skin, as this is what actually imparts warmth to the body to raise the core temperature and deliver the circulation and sweat responses from which the many benefits are achieved.
