Oxidation of the body causes aging and then causes death, but this process can be averted if there are Unconventional technologies brought forth. The same where used during Atlantis (Poseidon) times to maximize life expectancy to around 1800 to 2200 years. There were others that can extend this cycle to around 15–30,000 years but these were Demi Gods.
In those years there were around 2–3 temples that were dedicated to Eternal Life and to Fountain of Youth. The Soul is forever being of lightweight but the Body dies as it is effected by our external environment and what is eaten mostly. If you put premium Gas for Car you car will last longer then say, hence if you eat good then you will age less quickly and will prolong the Life cycle.
I’m sure if you were to eat very very little just enough to get by and also good quality food and herbs then you can extend to around 200 to 500 years but who who can do this?
