Russian scientists offered a method of deceleration of  lenticular opacity - one of the major signs of aging.

The Effects of the Deuterium Depleted Water and 18O Oxygen on the Development of Radiation Lesions after Gamma Irradiation. A.V. Rakov // Aerospace and Environmental Medicine, 2007, Vol. 41. No. 3 pp. 36–39.

        The paper shows that long-term consumption of deuterium depleted water and 18 oxygen reduces the severity of radiation lesions due to the action of gamma irradiation at low doses under the conditions of daily exposure. The results of structure study of immune organs (thymus and spleen) indicate than the mechanisms of the deuterium depleted water and 18 oxygen adaptive effect are due to the increase in the overall resistance of the organism in experimental animals.

      The paper revealed that, with repeated exposure to gamma irradiation at low doses and long-term consumption of deuterium-depleted water, the lenticular opacity was observed in mice 3 times less than in mice who received regular water. Significantly lower was also the development rate of lenticular opacity and cataract formation.

The graph below shows that one of the major signs of aging – lenticular opacity – occurs 2.2 times later in mice receiving light water.

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       Given that irradiation at low doses is often used as a model of accelerated aging, there are good reasons to consider deuterium depleted drinking water as a safe geroprotector having systemic effects on the body.