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The Twilight Years, Physiological, Pathological, Wear & Tear theory,…
The Twilight Years
Aging
Biological basis
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all combined,
Accumulate over time, that leads to overall deterioration
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Physiological
Universal, pre-programmed, irreversible
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Pathological
Depends on genetics, lifestyle, reversible
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Strand breaks, epigenetic changes, cross-linking. When repair system doesn’t work, leads to mutation
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As cells divide, telomeres at the end of chromosomes shorten. They are need for protection of DNA.
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Refers to measures that lower the incidence of disease or make a population at risk less susceptible to that risk.
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Entails making an effort to recognize unhealthy conditions early on, to act quickly and efficiently, or to stop the transmission of disease to others.
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Seeks to lessen suffering, shorten the duration and intensity of potentially severe disease-related outcomes and disabilities, as well as to help people cope with illnesses for which there is no cure.
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