Programmed theories of aging

Programmed theories of aging

1. Programmed Theories of Aging
KarismaAmjad
PhD Fellow
Institute of Social Welfare and Research
University of Dhaka
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2. Programmed Theories of Aging
Programmedtheoriesassertthatthehumanbodyis
designedtoageandthereisacertainbiological
timelinethatbodiesfollow.
Allofthesetheoriessharetheideathatagingisnatural
and"programmed"intothebody.
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3. Aging Is Programmed
Sinceagingisaboutevolutionandnotbiology,it
mustbeinherentintheorganismandnotsimply
aresultofenvironmentalfactorsordisease.That
meansthataginganddeath,accordingtothis
theory,arenotaresultofwearandtearor
exposure,butareaprogrammed,naturaland
necessarypartofgenetics.Inshort,weare
geneticallyprogrammedtoageanddie.
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4. There are a few different programmed theories
of aging:
•Programmed longevity theory
•Endocrine theory
•Immunological theory
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5. Programmed longevity theory
•Programmed longevity theoryis the ideathat aging
is caused by certain genes switching on and off over
time
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6. Endocrine theory
•Endocrine theoryis the idea that regular changes
in hormones control aging.
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7. Role of Endocrine System
•Your body'sendocrine systemsecretes and
controls the hormones that regulate many body
processes including metabolism, use of
nutrients, excretion, and reproduction. As you
age, these systems become less efficient, leading
to changes in our bodies, such as menopause.
The hormone theory of aging states that these
changes eventually cause the effects of aging.
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8. Immunological theory
•Immunological theorystates that the immune
system is programmed to decline over time,
leaving people more susceptible to diseases.
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9. Basics of the Immunological Theory
•As humans age, they experience changes to almost
all physiological functions, including those related to
the immune system. Medical experts have proven
that immune function does indeed decrease with
age, which contributes to a whole host of well-
known issues among seniors, from increased health
risks posed by common infections like a cold or the
flu to a greater occurrence of chronic inflammatory
diseases, such as gout and some types of arthritis.
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