Heathy aging and Health-Related Quality of Life Flashcards
Life Expectancy of gender and age
@ birth = 83 y [85 y (F), 81 y (M)]
1990: 81 F, 77 M
10 y increase from 5 decades ago
Among highest in developed world (#19)
@ age 65: 21.6 y (F), 18.5 y (M) [6y ↑ since 60s]
Current 20 y acceleration period: “Baby-boomers”
If you make it to age 65 your life expectancy goes?
down
@ age 65: 21.6 y (F), 18.5 y (M) [6y ↑ since 60s]
Current 20 y acceleration period: “Baby-boomers”
ratio of old people to kids
2015: 1st time in Cdn history, ≥ 65 y surpassed 0-14 y
2036: 1/4 (25%) Canadians ≥ 65 y (>10M), vs. 14% in 2009
people are likely to live the longest in___
People are likely to live longest in developed countries with state-funded healthcare systems like Japan, Canada, UK, Australia all with average life expectancies > 80 years.
Tiny tax haven of Monaco – notoriously wealthy inhabitants + compulsory state-funded health service – highest life expectancy 89.5 years (93.5 F/85.6 M), 5 years higher than anywhere else on earth. Lowest life expectancies: several African countries 50-55 years.
Percentage of canadian semiors health
6% poor
16% fair
38% good
28% very good
12% excellent
What is Healthy Aging?
Age @ death = 25% genetics/heredity
Non-genetic factors (e.g. lifestyle behaviours) affect development of age-related diseases
“Successful aging”: Within normal aging, extrinsic lifestyle & psychosocial factors can either have a compounding effect on the aging process, or play a neutral or positive role.
Absence of disease & related disability + high cognitive & physical functional capacity + active engagement in life.
“Successful aging”:
implies the inclusion of physical, mental & social health, & the potential for improvement in all of these realms.
“Compression of Morbidity”
Previously: Increased life expectancy viewed as pre-cursor to certain pandemic of disability & ill health
Now: Possibility of good health until very end of life
= Dominant paradigm for healthy aging.
Average life expectancy continues to rise, but
maximum lifespan has not increased – however, onset of morbidity & disability can be postponed, extending adult vitality further into that fixed lifespan & compressing the period of disability to just a brief time before death.
“Compression of Morbidity”
increasing life expectancy, can it be compressed?
With increasing life expectancy, the ideal is that the increase in onset age of morbidity outpaces increases in total life expectancy this creates compression of morbidity at the end of life.
Morbidity cannot be compressed indefinitely – but the possibility exists for a long healthy life, followed by a relatively rapid terminal decline.
Evidence for compressing morbidity
20-year follow-up of Penn University alumni: Among those who were physically active non-smokers with recommended body weight (low risk group), onset of disability was delayed by 10 y, vs. inactive overweight smokers (high risk group)
Age 50+ running club vs. non-running healthy community controls followed for 21 years: Runners developed disability at only 1/4 the rate of non-runners, & onset of disability delayed by 14-16 y in runners group vs. non-runners.
Studies also compared postponement of morbidity (10-16 y) vs. mortality (3-7 y) in these groups proof-of-concept for “compression of morbidity”.
How will you spend your last 10 years? (video)
https://www.youtube.com/watch?v=qNkzVz5Aljk
Summary of healthy aging and compression of morbidity
Healthy aging implies maintenance of physical, mental & social health
The compression of morbidity hypothesis suggests that positive lifestyle factors can help delay morbidity to a greater extent than the increases in life expectancy we have witnessed over many decades
What Changes Occur with Aging?
Decreases in Fitness (VO2max)
Changes in Body Comp (Increased Fat Mass)
Osteoporosis (Decreased Bone Density)
Sarcopenia (Decreased Muscle Mass)
Changes in Brain
(** Many characteristics associated with aging are not due to aging at all, but rather result from the neglect & abuse of our bodies & minds! **)
60 year old Swede commercial (1973):
http://www.youtube.com/watch?v=PMD35tUh-Ek