Young Adulthood (20-30 Years of Age)
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Stage of development - psychosocial stage: intimacy versus isolation.
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Physical development
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At the height of bodily vigor.
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Maximum level of strength, muscular development, height, and cardiac and respiratory capacity; also, period of peak sexual capacity for men.
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Cognitive development
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Close to peak of intelligence, memory, and abstract thought.
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Maximum ability to solve problems and learn new skills.
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Socialization
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Has a vision of the future and imagines various possibilities for self.
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Defines and tests out what can be accomplished.
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Seeks out a mentor to emulate as a guiding, though transitional, figure; the mentor is usually a mixture of parent, teacher, and friend who serves as a role model to support and facilitate the developing vision of self.
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Grows from a beginning to a fuller understanding of own authority and autonomy.
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Transfers an interest into an occupation or profession; crucial work choice may be made after one has knowledge, judgment, and self-understanding, usually at the end of young adulthood; when the choice is deferred beyond these years, valuable time is lost.
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Experiments with and chooses a lifestyle.
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Forms mature peer relationships with the opposite sex.
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Overcomes guilt and anxiety about the opposite sex and learns to understand the masculine and feminine aspects of self, as well as the adult concept of roles.
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Learns to take the opposite sex seriously and may choose someone for a long-term relationship.
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Accepts the responsibilities and pleasures of parenthood.
Adulthood (31-45 Years of Age)
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Stage of development - psychosocial stage: generativity versus self-absorption.
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Physical development
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Gradual decline in biological functioning, although in the late 30s the individual is still near peak.
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Period of peak sexual capacity for women occurs during the mid-30s.
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Distinct sense of bodily decline occurs around 40 years of age.
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Circulatory system begins to slow somewhat after 40 years of age.
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Cognitive development
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Takes longer to memorize.
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Still at peak in abstract thinking and problem solving.
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Generates new levels of awareness.
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Gives more meaning to complex tasks.
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Socialization
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Achieves a realistic self-identity.
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Perceptions are based on reality.
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Acts on decisions and assumes responsibility for actions.
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Accepts limitations while developing assets.
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Delays immediate gratification in favor of future satisfaction.
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Evaluates mistakes, determines reasons and causes, and learns new behavior.
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Struggles to establish a place in society.
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Begins to settle down.
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Pursues long-range plans and goals.
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Has a stronger need to be responsible.
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Invests self as fully as possible in social structure, including work, family, and community.
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Seeks advancement by improving and using skills, becoming more creative, and pursuing ambitions.
Middle Life (46-64 Years of Age)
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Stage of development - psychosocial stage: continuation of generativity versus self-absorption.
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Physical development
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Failing eyesight, especially for close vision, may be one of the first symptoms of aging.
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Hearing loss is very gradual, especially for low sounds; hearing for high-pitched sounds is impaired more readily.
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There is a gradual loss of taste buds in the 50s and gradual loss of sense of smell in the 60s, causing the individual to have a diminished sense of taste.
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Muscle strength declines because of decreased levels of estrogen and testosterone; it takes more time to accomplish the same physical task.
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Lung capacity is impaired, which adds to decreased endurance.
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The skin begins to wrinkle, and hair begins graying.
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Postural changes take place because of loss of calcium and reduced activity.
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Cognitive development
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Memory begins to decline slowly around age 50 years.
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It takes longer to learn new tasks, and old tasks take longer to perform.
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Practical judgment is increased due to experiential background.
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May tend to withdraw from mental activity or overcompensate by trying the impossible.
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Socialization
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The middle years can be very rewarding if previous stages have been fulfilled.
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The years of responsibility for raising children are over.
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Husbands and wives usually find a closer bond.
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There is less financial strain for those with steady employment.
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Individuals are usually at the height of their careers; the majority of leaders in their field are in this age group.
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Self-realization is achieved.
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There is more inner direction.
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There is no longer a need to please everyone.
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Individual is less likely to compare self with others.
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Individual approves of self without being dependent on standards of others.
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There is less fear of failure in life because past failures have been met and dealt with.
Early Late Years (65-79 Years of Age)
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Stage of development - psychosocial stage: ego integrity and acceptance versus despair and disgust.
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Physical development
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Continues to decrease in vigor and capacity.
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Has more frequent aches and pains.
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Likely to have at least one major illness.
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Cognitive development
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Mental acuity continues to slow down.
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Judgment and problem solving remain intact, but the processes may take longer.
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May have problems in remembering names and dates.
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Socialization
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Individual is faced with the reality of the experience of physical decline.
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Physical and mental changes intensify the feelings of aging and mortality.
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Increasing frequency of death and serious illness among friends, relatives, and associates further reinforces the concept of mortality.
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Constant reception of medical warnings to follow certain precautions or run serious risks adds to general feeling of decline.
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Individual is less interested in obtaining the rewards of society and is more interested in using own inner resources.
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Individuals feel that they have earned the right to do what is important for self-satisfaction.
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Retirement allows time for expression of own creative energies.
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Overcomes the splitting of youth and age; gets along well with adolescents.
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Learns to deal with the reality that only old age remains.
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Provides moral support to grandchildren; more tolerant of grandchildren than was of own children.
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Tends to release major authority of family to children while holding self in the role of consultant.
Later Years (80 Years of Age and Older)
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Stage of development - psychosocial stage: continuation of ego integrity and acceptance versus despair and disgust.
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Physical development
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Additional sensory problems occur, including diminished sensation to touch and pain.
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Increase in loss of muscle tone occurs, including sphincter (urinary and anal) control.
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Individual is insecure and unsure about orientation to space and sense of balance, which may result in falls and injury.
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Cognitive development
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Has better memory for the past than the present.
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Repetition of memories occurs.
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Individual may use confabulation to fill in memory gaps.
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Forgetfulness may lead to serious safety problems, and individual may require constant supervision.
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Increased arteriosclerosis may lead to mental illness (dementia and other cognitive disorders).
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Socialization
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Few significant relationships are maintained; deaths of friends, family, and associates cause isolation.
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Individual may be preoccupied with immediate bodily needs and personal comforts; the gastrointestinal tract frequently becomes the major focus.
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Individuals see that they can provide others with an example of wisdom and courage.
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Individuals come to terms with themselves.
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Individuals are concerned with own immortality.
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Individuals come to terms with the process of dying and prepare for own death.