11 views26 pages
Lecture 1: Demographics of Aging
1. Who Are the Elderly?
- Middle Age
o 40-65 years old
o 10-30% loss of function in major biological systems( does not affect quality of life
very much)
- Old Age (when your actions creek louder than your words)
o 65-75 years of age
o Further decline in biological function
o In most cases these people can still maintain independence (if do not have a disease
or are disabled)
- Very Old Age
o 75 -85 years of age
o Loss of ability to perform ADLs
o Require some potential assistance
- Oldest Old Age
o Greater than 85
o Institutionalized and/or nursing care usually required
o The fastest growing group in our society today
2. The Human Life Span
- Maximum Life Span
o Hasn’t changed over past 2 centuries
o Defined as the “survival potential”
Biological upper limit for species to age
Age of 115-120 dictated by biology of the species
o Currently the oldest verified age for a human is 122 years (Jeanne Calment (1875-
1997) )
Sold her apartment on a contingency plan
Outlived the lawyer who bough his apartment
o Current oldest living person is Jiroemon Kimura ( Japan)
115 years old born April 19, 1897
Also the oldest man ever
o Oldest Canadian
Ever
Marie- Louise Milleur was 117 years old and 230 days
Was bourn August 29, 1880 and died April 16, 1998
Living
Marle Barwis ( born in US, now lives in BC) now is 112
o Born December 23, 1990
Flora Thibodeau (born in New Brunswick and still living)
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 26 pages and 3 million more documents.

Already have an account? Log in
- Oldest old people do not die at exponential rate, they die at a slower rate
- The oldest old population is not dying of at the same rate as the younger people because of
advancement in medicine ( small effect). Also people that have made it to that age are
already in good health.
- There is something about these peoples’ genetics, biology and how they are impacted by
the environment that is slowing them to live this long
- Typically these people have good genetics and less impact from the environment. Also
might have good immune system.
- Oldest woman are 2 lbs of chocolate a week and the oldest living man says his secret is
eating small portions and getting lots of sunlight.
- Survival of the fittest= these individuals have characteristics that are allowing them to live
longer .These individuals have higher threshold for disease
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 26 pages and 3 million more documents.

Already have an account? Log in
- Someone’s life span is dictated by threshold for disease and how quickly the disease will
progress
- For individual A the threshold is lower and the progression is higher
- For individual B the threshold is higher and the progression rate is lower => thus these
people are much older than normal population
- Average Life Span
o Average age by which all but very small percentage of the members of a population
are deceased
o Has not changed much since the beginning of recorded history (similar to max life
span)
Recorded history refers to biblical texts
o Most gerontologists agree that average life span for humans is approximately 85
years of age. Most people get to this age, only 10-15 % make it past this age
o Dictated by biology, just like maximum life span
- Life Expectancy
o Average number of years remaining for population of individuals (usually expressed
from birth)
o Life expectancy has increased significantly in the last century in most countries, for
both genders
o i.e. if you have a cohort of people born in the same year, it is the average number of
years that that cohort is expected to live
if look at a group of 75 year olds
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 26 pages and 3 million more documents.

Already have an account? Log in

Document Summary

Middle age: 40-65 years old, 10-30% loss of function in major biological systems( does not affect quality of life very much) Old age (when your actions creek louder than your words: 65-75 years of age, further decline in biological function. In most cases these people can still maintain independence (if do not have a disease or are disabled) Very old age: 75 -85 years of age, loss of ability to perform adls, require some potential assistance. Oldest old age: greater than 85, the fastest growing group in our society today. Institutionalized and/or nursing care usually required: the human life span. Maximum life span: hasn"t changed over past 2 centuries, defined as the survival potential . Biological upper limit for species to age. Age of 115-120 dictated by biology of the species: currently the oldest verified age for a human is 122 years (jeanne calment (1875- Sold her apartment on a contingency plan.

Get access

Grade+
$10 USD/m
Billed $120 USD annually
Homework Help
Class Notes
Textbook Notes
40 Verified Answers
Study Guides
Booster Classes
Class+
$8 USD/m
Billed $96 USD annually
Homework Help
Class Notes
Textbook Notes
30 Verified Answers
Study Guides
Booster Classes