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Biological clocks act through hormones to control the pace of aging. Advocates of this theory ascribe to the use of various natural and synthetic hormones, such as the human growth hormone, to slow the aging process.
What are the key concepts of genetic theories? Aging is the result of genes that switch on and off. Longevity genes extend life of cells, Proliferation genes stimulate renewal of cells, Replicative senescence genes limit cell growth, and telomeres - ends of chromosomes shorten and limit replication. What is the application of the genetic theories?
Propose that damage and errors in cellular processes accumulate over time, contributing to aging. Cross-linking theory suggests that radiation or chemicals cause cross-linking agents to attach to DNA, hindering cell division.
1 Νοε 2015 · This article will explore several common theories about why and how we age. By understanding current aging theories, clinicians can follow advances in aging research and intelligently address patient questions about life extension therapies and strategies to slow aging.
Modern biological theories of aging in humans fall into two main categories: programmed and damage or error theories. The programmed theories imply that aging follows a biological timetable, perhaps a continuation of the one that regulates childhood growth and development.
22 Ιουν 2020 · Some aspects of ageing can be studied directly in humans and have revealed that ageing is influenced by many factors, including genetics, lifestyle, sex and socio-economic status.
6 Απρ 2007 · Summary. This chapter contains sections titled: Defining Aging. Life Spans of Living Organisms. Aging is Not Disease. Accelerated Aging in Humans. Longevity and Health. Aging at the Cellular Level. Biological Theories of Aging. Conclusion. REFERENCES. Citing Literature.
