"Aging is gradually built, which contributes to biological and environmental variables, and many authors have been concerned with explaining the co...

"Aging is gradually built, which contributes to biological and environmental variables, and many authors have been concerned with explaining the contribution of such factors. While some studies focus on understanding the decline of biological functions, others focus on the behavior patterns adopted by the elderly person" (2008). Biological theories can be subdivided into two groups that comprise:


a) Stochastic and genetic-development limit and accumulation.
b) Stochastic and accumulation of genetic-development and Hayflick limit.
c) Genetic-development and accumulation of stochastic and limit of Hayflick.
d) Genetic-development and stochastic accumulation and limit.
e) None of the above.