ABSTRACT
Aging is a process of universal, intrinsic, deleterious, and progressive. Understanding and exploring the mechanisms of aging are of major interest to scientists, physicians as well as to the general population. More than 300 theories of aging have been proposed. Traditionally, these theories are divided into two main types: one is a stochastic event resulting from the accumulation of random errors and the other is an orderly, genetically programmed event that is the consequence of differentiation, growth, and maturation. In this chapter, we review the important phenomena of aging and the current main genetic program theories of aging. These theories provide new experimental approaches to further develop our understanding of the phenomena of aging. We also propose the potential antiaging strategies based on these theories of aging.
