primary aging
physiological aging related to time (senescence)
secondary aging
changes related to trauma or disease process
primary, secondary, tertiary prevention
P = vaccines, education
S = pap test
T = meds to keep chronic conditions controlled
biological theories
programmed
damage/error
programmed aging theories are
senescence aging
cells natural loss of function over time
gene aging
: life span is inherited
endocrine aging
aging is controlled by hypothalamus
immunologic aging
Decrease of T cells leads to infections
nutritional aging
diet affects aging
damage/error aging theories
wear & tear aging
body parts wear out
cross-linking aging
DNA / proteins cross link with sugars and become stiff
free radicals aging
toxins damage cells; anti-oxidants neutralize toxins
somatic mutation aging
DNA damage (telomeres)
environmental aging
environmental toxins damage cells
psychosocial theories of aging
role aging
adaptation to different roles at late life is required
person-environmental fit aging
changes in competencies and needs due to aging influence ability to deal with environment
activity aging
active / productive life leads to life satisfaction and better health outcomes
continuity aging
continuation of life roles and habits slows aging
disengagement aging
there is a natural separation of old people from society (theory not supported currently)
age stratification aging
cohorts that age together share experiences
gero-transcendence aging
spirituality has a greater role in life and in acceptance of death