La science a découvert depuis longtemps que les cellules humaines, sont sensibles à la lumière du soleil :

  • Thnaks to UV from the sun our cells produce vitamin D.
  • The white light stimulate the phtosensitivity of the skin and helps to have a better circadian rythm as well as a better sleep.
  • The near infrared light (From 0,75 to1,5 microns) which is heating, stimulate mitochondria that produce more energy (AdEnosine triphosphate or ATP). Infrared lamps are used in sports notably for recovery and to help the muscle to relax.


The last researches on the light brought the scientists to specifically focus on the far-infrared light. They discovered that this light doesn’t heat and was favorable to the ddevlopment of all the living beings. Each organism emits its own far-infrared radiation (FIR) in wavelength included between 4 et 14 microns.

When we expose a body part to FIR, an enzyme is activated. This enzyme called eNOS is located in the wall of the endothelial cells that form the capillaries, and accelerate the production of nitrogen oxide (NO) in thesse capillaries.

Clinical studies, led by Dr Chukuka S. Enwemeka, showed that nitrogen oxide is one of the most important factor in the regulation of the blood circulation. The nitrogen oxide is a powerful vasodilator. It can fiw the internal wall of a blood vessel, decrease the blood pressure, relax the capillaries smooth muscles and, as a result, increase the blood flow.


The action of the NO will increases the microcirculation, allowing better exchanges between the cells : better oxygenation, better tissue repair and a better draining of tissues.



In 1998, the Physiology Nobel Prize were attributed to three scientists after having discovered the importance of the NO in our circulatory system.  Ting-Kai Leung et al, Biomed. Eng. Appl. Basis Commun. 21, 317 (2009). DOI: 10.4015/S1016237209001404



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