In this context, is SENS Strategies for Engineered Negligible Senescence?
You can do this right now with very vigorous exercise.
In fact, it appears that ones own mitochondrial population can be kept "young" by constantly weeding out cells with poor energy efficiency. Sort of a intra-body natural selection with exercise as the environmental stressor.
There is a very interesting book by Nick Lane titled _Power, Sex, Suicide_ that explores these ideas.
Not to worry, I suppose, since anyone with even a fleeting interest in "life extension" or "anti aging" would have a comprehensive, extremely intense exercise regimen ...
Right ?
Absolutely. And my adherence to it is at least as fleeting.