Aging Process Aging is a natural process that happens to all incarnated entities, although the rate and effect may differ. Let us be specific.
Complex organisms fight two battles.
One is to gain in size and complexity soon enough to reproduce effectively, and the second is to stave off the aging process while this is going on. Any machine wears down, the edges of the parts getting rough until they fail to operate as expected, connections breaking, refurbishments failing to appear when needed, and foundations crumbling under weight over time. Happens everywhere, all the time. Happens to the intelligent, conscious, bodies incarnated with indestructible souls. But there are pros and cons, and there are differences in the aging process between the densities and between intelligent species on other worlds.