Premature aging can be reversed by reactivating an enzyme that protects the tips of chromosomes.
Creating a genetic switch that allows them to artificially age — and rejuvenate — lab mice, scientists have shown that it is possible to reverse some effects of aging in mammals.
Dr. Ronald DePinho, the molecular biologist at the Dana-Farber Cancer Institute at Harvard Medical School led the study, published in the journal Nature.
This is incredibly exciting news. Switching on or reactivating an enzyme 
that protects the tips of chromosomes can actually reverse the effects of aging.
