week 10 Flashcards
wear and tear theory
- Little evidence
- Believes aging is due to the cumulation of hard work and lifelong stress
- Cells and tissues have vital parts that wear out resulting in aging
- First introduced by Dr August Weismann a German biologist in 1882
mitochondrial theory
- As we age, mitochondria become less efficient therefore less ATP production.
- Therefore can not grow and repair
- Anti-oxidants protect mitochondria
cellular cloth theory
- Cells have an internal genetic clock and stop reproducting after a certain amount of reproductions
- Believes cells can divide a max of 80 times
- Only live as long as we are programmed to
free redical theory
- Highly unstable molecules cause mutations and cells to break down
- Genes play a part in how long we live
- Damage is accumulative over time
cell replication
- Every species has a maximum life span
- Humans 110-120 years
- How many times cells can replicate
hormonal stress theory
- long elevated levels of stress related hormones have been connected to increased risk in:
- Cardiovascular disease
- Cancer
- Diabetes
- Hypertension
- Decline in immune system function
whats late adult hood divided into
- Young old ages 65 to 74
- The old old ages 75 to 90
- The very old ages 90 and older
Ageing in Australia
- Fastest growing segment, tripled in 100 years
- In 2017, over 1 in 7 Australians were aged 65 years and over
- In 2014–16, Australian men aged 65 could expect to live another 20 years and women another 22 years
- In 2016, 1 in 8 older people were engaged in employment, education or training
- By 2057 22% of Australians will be older adults
- The profile of the older population is projected to change
ability and disability
Increased disability correlates with the increased age of person and increased need for assistance to attend to Activities of Daily Living (ADL).
• For example, approximately 23% of people aged 45-54 reported some disability and only 4% of this age group needed assistance with ADLs.
• 74% of those over 80 years old, reported a disability and 58% of these people needed assistance for ADLs
** successful ageing 3 components
- avoid disease and disability
- Low probability of disease denotes the absence of disease and affects the presence or severity of risk factors. - maintain cognitive and physical function
- This impacts the person’s potential ability to be active and indicates what a person can do. - engagement in life
- Interpersonal relationships involve communication, information exchange, emotional support, direct assistance.
- The value of an activity is what an individual put to it.
physical skills young old
- Some skills decline as we grow older, particularly manual dexterity
- While reaction time does decrease, sometimes this may be impacted by ageism (motivation decrease)
- These abilities can be improved
tips to protect hearing
- Stay away from loud or prolonged noises when you can.
- Turn down the music volume.
- Buy power tools that have sound controls.
- When you must be around noise, either at work or at play, use something to protect your hearing.
tips to protect sight
- Remember the value of regular checkups to ensure eye health.
- Any out-of-the-ordinary events should be immediately checked out.
phsyciological changes in old age
cardiovascula
pulmonary
musculoskeletal
metabolic/ endocrine
what cardiovascular change occurs in old age
Coronary artery disease, hypertension, valvular heart disease, left ventricular dysfunction and failure, congestive heart failure, dysrhythmias, aortic stenosis and aneurysms, peripheral vascular disease