The Hindus believe that the Vedic and the post-Vedic rishis have attained immortality, which implies the ability to change one's body's age or even shape at will.
The mytheme of requesting the boon of immortality from a god, but forgetting to ask for eternal youth appears in the story of Tithonus.
[4] In baboon skeletal muscle, that consists of fully differentiated post-mitotic cells, less than 3% of myonuclei contain damaged telomeres and this percentage does not increase with age.
A cancer cell has in essence turned on the telomerase gene, and this allows them to have an unlimited amount of divisions without the telomeres wearing away.
[11][12] In 2015 a new class of drugs senolytics was announced (currently in pre-clinical development) designed specifically to combat the underlying biological causes of frailty.
[13] The "loss of youth" or ageing process is responsible for increasing the risk of individuals to many diseases including cancer, Parkinson's, Alzheimer's, and others.
[14] These people include Jeff Bezos, Ray Kurzweil, Peter Thiel,[15] Aubrey de Grey, Larry Ellison, Sergey Brin, Dmitry Itskov, Paul Gallen,[16] and Mark Zuckerberg.