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[10] [11] Examining telomeres is one of the most important fields of research related to aging. It is also very important to investigate the mechanisms of maintaining telomerase, cell cleansing ( old cells that accumulate in tissues and sometimes cause cancer and inflammation) and the production of new cells in long-lived organisms.
The DNA damage theory of aging postulates that DNA damage is ubiquitous in the biological world and is the primary cause of ageing. [27] The theory is based on the idea that ageing occurs over time due to the damage of the DNA.
In biogerontology, the disposable soma theory of aging states that organisms age due to an evolutionary trade-off between growth, reproduction, and DNA repair maintenance. [1] Formulated by British biologist Thomas Kirkwood , the disposable soma theory explains that an organism only has a limited amount of resources that it can allocate to its ...
The book An Everyone Culture: Becoming a Deliberately Developmental Organization Kegan and colleagues connect the concept of deliberately developmental organizations (DDOs) with adult development theories and argues for the importance of transitioning from a socialized mind to a self-authoring mind and then from a self-authoring mind to a self ...
Aging entails many physical, biological, chemical, and psychological changes and the brain is no exception to this phenomenon. These various changes have attempted to be mapped by conceptual models like the Scaffolding Theory of Aging and Cognition (STAC) in 2009.
Older people are respected for their wisdom and most important decisions have traditionally not been made without consulting them. This is a similar case for most Asian countries such as the Philippines, Thailand, Vietnam, Singapore, etc. Positive self-perceptions of ageing are associated with better mental and physical health and well-being. [140]
The reliability theory of aging is an attempt to apply the principles of reliability theory to create a mathematical model of senescence. [1] The theory was published in Russian by Leonid A. Gavrilov and Natalia S. Gavrilova as Biologiia prodolzhitelʹnosti zhizni in 1986, and in English translation as The Biology of Life Span: A Quantitative Approach in 1991.
Organisms- As individuals age, their social networks begin to decline. Only thing remaining is the contacts for the most important social functions. Cognitive deterioration due to aging and loss of support systems leads to more declines in old age. [5] Social groups- A decline in social groups mimics the declines associated with the aging ...