On the ontology of biological aging.
The central question in the field of experimental gerontology is: what is biological aging? It is true that a living body must obey the laws of causal determinism; like all bodies it is subject to the physical and chemical laws of the phenomenal world. But there is a further aspect; as well as the finality which unites the part, the organism and the organ, there is also a metaphysical meaning at work in life.
D000368:Aged; D000375:Aging / Q000502:physiology*; D000818:Animals; D003643:Death; D006801:Humans; D010686:Philosophy, Medical