Aging is a biological process that has attracted the attention of many scientists and philosophers over the years (Robnett & Chop 2013). Several theories have been postulated to explore and analyze how living organisms age. A number of theories have been used to describe the process of aging (Yragui, Silverstein & Johnson 2013). Within the past few decades, some concepts of aging have been embraced by many scholars. At the same time, some theories have been abandoned completely (Meiner 2010). Most of these hypotheses have been studied widely to understand the process of human aging. Robnett and Chop (2013, p. 56) believe strongly that ‘a wider knowledge of the mechanisms that tend to affect the aging process can play a significant role towards identifying new interventions that have the potential to alter the process of aging’. Scientists are presently trying to identify a wide range of mechanisms that are associated with aging. The greatest hope is that the new understanding will make it possible for more communities to lead better and healthier lives (Meiner 2010). Several concepts or theories explain why living organisms age. The first widely studied hypothesis is known as the cross-linking theory . According to proponents of this model, cell proteins and structural molecules tend to develop inappropriate bonds whenever a living organism ages. Such bonds reduce the elasticity of different cell molecules. Such proteins are eventually broken down by enzymes thus resulting in a process known as glycation (Aiken 1995). Researchers argue that ‘the cross-linking hypothesis explains how wrinkling in elderly people take place’ (Meiner 2010, p. 48). The other widely studied theory of aging is ‘the evolutionary senescence hypothesis ’ (Meiner 2010, p. 54). This model explains how the process of natural selection fails to affect the success of various late-life genes or traits. Due to this process, inappropriate late-life genes tend to be passed across from generation A to B. However, some skeptics argue that this theory should be refined and re-examined in order to come up with better arguments. It also happens to be the best theory that supports the process of aging. The genome maintenance hypothesis is also used to describe why human beings tend to age (Cox 2006). According to the concept, the DNA is usually damaged very many times every single day (Wadensten 2006). This process takes place continuously throughout a person’s life. The greatest damage usually results from oxidative radicals and toxins. Any form of mutation during conception will also be inherited by every future generation. Some ‘mutations will never be corrected and can eventually result in cell malfunction or death’ (Reinhard & Hassmiller 2014, p. 6). The hypothesis also describes how somatic mutations occur in the DNA of every mitochondrion (Meiner 2010). Cox (2006) also argues that ‘mitochondrial aging is responsible for aging in particular’ (p. 48). With this knowledge, scientists and health professionals can identify the best processes that can be used to deliver appropriate care to the elderly people in the community. For instance, researchers can produce specific medicines that can inhibit various biological processes such as mitochondrial aging. As well, doctors c