So you've looked after your health, augmented your body as much as transhumanly possible and living forever. But who wants to live forever in the body of a centenarian? Rejuvenation technologies will be the natural bonus of life extension technologies, i.e. they will slow aging down so much eventually they will start to reverse it.
This section has information regarding how bodies will be repaired (e.g. replacement organs) and physiological age reduced.
Reversing aging by removing wrinkles inside our cellsScienceDaily - 29-May-2018
Fatty liver disease may result from our cells' nuclei getting wrinkly.
XPO1 inhibition increases autophagy and lifespanNews Medical - 16-May-2018
Reducing the expression of XPO1 led to an increased concentration of TFEB.
Can autophagy boost your health?BBC - 06-May-2018
Autophagy is the process by which cells degrade and recycle their components.