The influence of 10 minutes everyday, a week duration, exposure of visible non coherent polychromatic light on acupuncture point E-36 on the state of prooxidant-antioxidant balance in the front brain of rats, that contains at luminescent light during the day-night period was investigated. It is established, that polarized light prevented intensification of peroxide lipid oxygenation, that is observed after permanent enlightenment by non polarized light and helped to preserve the activity of enzymes of nerve cells antioxidant defense. It is possible to recommend the applications of polarized incoherent light for prophylaxis and correction of disorders connected with shifts of biorhythms (light desynchronizes) in persons that cross time zones during transcontinental flights, spend long periods in polar conditions or many hours under the influence of sun.