Chapter 21, Problem 14TY

Summary Introduction

Introduction:

Aging is a process where the body undergoes changes with the passage of time. There are three theories/hypothesis on the causes of aging. First describes that there is some type of internally situated genetically determined program that determines the cell’s death timing. The second one describes that if there is a high accumulation of damaged cells in the body then it eventually leads to limiting the capability of the cell of repairing them. The third describes the decline of the function of one’s body system can cause a decline in the other one due to the interdependency of the organ system in the complex organism.