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Chapter 16:

  Physical and Cognitive  Development in Middle Adulthood

Changing Middle Age

•         As longevity continues to increase

–        Definitions of “middle-age” keep changing

–        Middle-aged adults lead healthier and more active lives than any other generation in history

–        Each year, about 3 million Americans who have turned 50 join AARP

–        The median age of the U.S. population will shift from 33 in 1990 to 42 by 2050

•         Middle-aged baby boomers are of interest because

–        Of their increased numbers

–        They are the best educated cohorts in history

–        They are the most affluent cohort in history  

•         For many, middle age is a time for

–        A decline of physical skills

–        Increasing responsibility

–        Transmitting knowledge to the next generation

–        Reaching and maintaining career satisfaction

–        Balancing work and relationships

–        A reassessment of life’s priorities

Physical Development

•         Noticeable midlife physical changes include

–        Wrinkling and sagging of skin

–        Appearance of aging spots

–        Hair becomes thinner and grayer

–        Nails become thicker and more brittle with ridges

–        Yellowing of teeth

•         Being middle-aged is perceived as positive for men and negative for women

•         Height shrinks in middle age, and many gain weight – a critical health
problem in middle adulthood

•         Age-related loss of muscle mass and strength can be reduced by regular exercise  

•         Joint stiffness and difficulty of movement usually accompany a progressive loss of bone in middle age

•         The sharpest decline in vision occurs between ages 40 and 59 as the eye’s blood supply diminishes 

•         Hearing starts to decline about age 40, with men losing sensitivity to high-pitched sounds earlier than women

•         Midlife is often a time for high blood pressure, high cholesterol, and cardiovascular disease 

•         At menopause, a woman’s blood pressure rises sharply, remaining higher than that of men into the later years 

•         At about age 55, lung tissue becomes less elastic; nonsmokers have the best lung capacity 

•         Sleep has more wakeful periods, with more time spent lying in bed – more tiredness in the mornings

•         Only 7% of people in their early 40s have disabilities, compared with 16% in their early 50s and 30% in their early 60s 

•         Chronic disorders are

–        Rare in early adulthood but increase in middle age

–        Characterized by slow onset and long duration 

•         Men have higher rates of fatal chronic conditions while women have higher rates of nonfatal chronic conditions 

•         Stress is a key factor in disease, especially if cumulative

•         Acute stressors cause poor immune system functioning, but chronic stressors can cause an increasing weakening of the immune system 

•         Emotional stability and personality are linked to health in middle adulthood – the healthiest being the most responsible, self-controlled, and the calmest 

•         Culture plays an important role in coronary disease – immigration modifies healthy practices even as genetic predispositions remain constant

•         There is a stronger link between coronary disease and Type A behavior patterns than Type B behavior patterns 

•         Hardiness is a personality style that can lessen the effects of stress – when accompanied by regular exercise and positive social support, it can help  maintain good health

•         Chronic diseases are the main cause of death during middle adulthood

–        Leading cause of death is heart disease

–        Second leading cause is cancer

–        Third leading cause is cerebrovascular disease 

•         Although most menopausal women report having hot flashes and other effects, the majority of them felt relieved that their childbearing years were over

•         The average age for menopause is 51 but varies from ages 39 to 59 – the majority of women remain sexually active and retain their femininity 

•         Cross-cultural studies show that the menopausal experience varies among women 

•         Postmenopausal hormone treatments have been linked to increased risk of stroke, dementia, and cancer 

•         Testosterone levels in men gradually drop in middle adulthood decreasing sexual ability and activity, but several therapies and techniques can improve performance

Cognitive Development

•         Crystallized intelligence increases in middle adulthood, while fluid intelligence begins to decline

 

•         Some studies show middle adulthood is a time when cognitive functioning peaks, but the rate of information-processing decreases in most

•         There is controversy as to whether memory declines in middle adulthood, but it is argued that a slowdown
in the learning of new information does occur

•         Memory decline is affected by

•         The types of processing strategies used 

•         The amount of experience one possesses in an area of knowledge – expert or novice

•         How often memory is used

Careers, Work, and Leisure 

•         Work is central to one’s life during middle age

•         In the U.S., about 80% of people aged 40 to 59 work

•         Midlife is a time of evaluation, assessment, and reflection about work roles and future goals

•         Overall, job satisfaction steadily increases throughout one’s working life – usually from age 20 to 60

–        This pattern applies to both men and women

–        This pattern applies to both college- and non-college-educated adults

•         As workers enter middle age, there is a greater commitment to work and less absenteeism

•         Currently, middle-aged workers face many challenges

–        Globalization and exporting of jobs

–        Rapid development in technologies

–        Downsizing and restructuring of companies

–        Early retirement – forced or due to buyouts

•         Leisure is an important aspect of middle adulthood due to changes in relationships and career

•         In middle adulthood

–        Financial circumstances are improved

–        More opportunities for leisure are available

–        There are chances to diversify interests 

•         Some research facts:

–        Men who take vacations from work live longer

–        Men who avoid vacations tend to have Type A personalities 

•         Constructive and fulfilling leisure activities help individuals prepare psychologically for retirement

Religion and Meaning in Life 

•         Some research facts:

–        A majority of middle-aged adults are religious and consider spirituality a major part of their lives

–        Spirituality significantly increases from the early 30s to the late 60s and early 70s

–        Females are more interested and active in both organized and personal forms of religion than men

–        Americans show strong belief in God and religion but show declining faith in mainstream religions, religious leaders, and the moral stature of the nation

•         Religion is linked to health:

–        Some religious cults and sects encourage behaviors that negatively affect health, such as refusing medications or ignoring sound medical advice

–        The effects of mainstream religion on health are mediated by other factors, but overall, there is a positive relationship with longevity

•         Religion may promote better health:

–        Physically: lowering blood pressure and muscle tension

–        Psychologically: supporting better coping skills

•         Some studies show religion

–        Decreases depression

–        Is associated with a sense of competence and control, freedom from guilt and worry, and an absence of illness

–        May or may not be related to one’s happiness

•         Some coping may be affected by spiritual support that is related to personal adjustment

•         Religious beliefs can affect perceptions of pain or disability – thus affecting decisions to seek treatment

•         Many have pondered the meaning of life – the search may come after great personal losses 

•         Frankl identified three most distinct human qualities as

–        Spirituality

–        Freedom

–        Responsibility  

•         In middle adulthood, the reality of approaching death forces one to ask questions and evaluate the answers

•         Baumeister has argued that the quest for the meaning of life may be understood in terms of 4 needs:

•         Purpose

•         Values

•         A sense of efficacy

•         Self-worth