Final Exam- Chapter 15 Flashcards
What is Optimal Aging? Healtht aging…
Healthy aging can be defined as absence of disease &
good physical function, intact cognition, and an active engagement with life
Optimal Aging- Losses are often balanced by gains
- Positive psychological characteristics include happiness
intellectual curiosity, gratitude, deep spirituality, & a strong sense of community - A certain level of detachment & wisdom may be necessary to learn to accept whatever level of illness & disability one has, thereby preserving mental health, & as much social functioning as possible within the confines of disability.
Life Span
the maximum number of years an individual can live;
has remained between 120–125 years
Life Expectancy
- the number of years that the average person born in a particular year will probably live
- Has increased an average of 30 years since 1900
- Average life expectancy today is 78.1 years
- -Overall female: 80.7
- -Overall male: 75.4
Longer life span
– Decrease in infant mortality & infectious diseases
– Better health practices (sanitation, drinking water, nutrition & food safety, better heath behavior habits)
– Decline in heart disease & deaths due to cardiovascular
disease (such as stroke); though cancer deaths have
remained relatively stable
Leading causes of death
– Smoking, poor diet & physical activity, & alcohol consumption—not pathogens
– Obesity is 4th leading cause
Cellular Clock Theory
Cells can divide a max of 75-80 times; this places the max human life span at 120–125 years of age
-Telomeres become shorter each time a cell divides
Free-Radical Theory
people age because when cells metabolize energy, the by-products include unstable oxygen molecules, or free radicals
-Free radicals damage DNA & other cellular structures
Mitochondrial Theory
aging is due to the decay of mitochondria
-Mitochondria: tiny bodies within cells that supply essential energy for function, growth, and repair
Hormonal Stress Theory
aging in the body’s hormonal system can lower resistance to stress and increase the likelihood of disease
-Prolonged, elevated levels of stress hormones are associated with increased risks for many diseases
Vision
- Decline in vision becomes more pronounced
- Adaptation to dark and driving at night becomes especially difficult
- Decline may be the result of a reduction in the quality or intensity of light reaching the retina
- Color vision may decline as a result of the yellowing of the lens of the eye; affects green/blue/ violet spectrum
- Depth perception declines in late adulthood
- Decrease in contrast sensitivity
Hearing
- Hearing impairments are typical in late adulthood
- 15% of the population over age 65 is legally deaf
- Usually due to degeneration of the cochlea
- Some (but not all) hearing problems can be corrected by hearing aids
Smell and Taste
- Smell and taste losses typically begin about age 60
- Less decline in healthy older adults
- Often leads to a desire for more seasoned foods
Touch and Pain
- Slight decline in touch sensitivity with age
2. Older adults are less sensitive to pain
Research focus on motor control & aging has been captured in 3 distinct areas of study
- Physical fitness aspects such as strength, flexibility, & endurance
- The information processing activities that relate variables such as reaction time and movements time as factors that reduced motor performance with aging
- The neurophysiological control of posture, locomotion, & fine motor control
Motor complex behavior
- A central hypothesis holds that as individuals age, they are less capable of producing complex behavior
– May be due to a reduction of individual structural components or a restriction of the coupling of these components - There is a strong relationship between the complexity of movement output & skill level of performance as a function of task
- Postural control is another element affecting complexity of movement & tends to decline with age
- Skill also influences output & complexity of movement & can serve as a buffer for motor decline
Sexuality
- Orgasm becomes less frequent in males with age
- Many older adults are sexually active as long as they are healthy (Lindau & colleagues, 2007)
- Older adults who do not have a partner are far less likely to be sexually active than those who have a partner
- For women ages 70+, approx 70% do not have a partner compared to 35% of men - Various therapies have been effective for older adults who report sexual difficulties
- Sex education
Substance Abuse
- Medications can increase the risks associated with consuming alcohol or other drugs
- Can lead to breathing impairment, excessive sedation, or fatal O/D
- Majority of U.S. adults 65 and older (58%) completely abstain from alcohol (Nat’l Center for Health Stats, 2006)
- Substance abuse among older adults may be an “invisible epidemic” (SAMHSA, 2002)
- Late-Onset Alcoholism: onset of alcoholism after the age of 65
- Often related to loneliness, loss of a spouse, or a disabling condition
- Moderate drinking of red wine is linked to better health and increased longevity (lowering stress & reducing coronary h.d.)
Exercise
Active adults are healthier and happier: cardio & weights combined is best
Benefits of Exercise
- Linked to increased longevity
- Related to prevention of common chronic diseases
- Associated with improvement in the treatment of many diseases
- Can optimize body composition and reduce the decline in motor skills as aging occurs
- Reduces the likelihood that older adults will develop mental health problems
- Linked to improved brain and cognitive functioning
Nutrition & Weight
- Some older adults restrict their dietary intake in a way that may be harmful to their health
- Decreased snacking between meals may contribute to harmful weight loss
- Calorie restriction has been proven to extend the life span of certain animals, but it is not known if this works in humans
- Antioxidants (Vits. C, E, & beta-carotene) may help slow the aging process & possibly prevent some diseases
Health Treatment
- Patient’s feelings of control & self-determination are
important for health & survival in nursing homes (Rodin & Langer, 1977)
-Coping skills may reduce stress-related hormones, improving overall health
-Assertiveness training and time-management skills
-Cortisol levels were lower for individuals who received assertiveness training
Cognitive mechanics
- The “hardware” of the mind; components:
- Speed and accuracy of processes involved in sensory input, attention, visual and motor memory, discrimination, comparison, and categorization - Tends to decline with age
- Strongly influenced by biology and heredity
Cognitive pragmatics
- culture-based “software” programs of the mind
- Reading, writing, and educational qualifications
- Professional skills and language comprehension
- Knowledge of self and life skills - May improve with age
- Strong cultural influences