biologist, researcher
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We see that mice that undergo caloric restriction show a lower telomere shortening rate than those fed with a normal diet. These mice therefore have longer telomeres as adults, as well as lower rates of chromosome anomalies.
We believe that such a significant increase in longevity is due to the protective effect against cancer produced by caloric restriction - incidences fall by 40 percent if we compare them with the mice that produce more telomerase and have a normal diet - and, added to the presence of longer telomeres, this makes the mice live longer and better.