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Emerging adulthood extends from age 18 to roughly age 25.
Ψ In adulthood chronological age is an imperfect guide to development. Individual variations from cohort norms must be considered.
Ψ Developmentalist's believe that cohort & age do affect behavior, therefore categorization can be useful. The categories
for adults(as of 2008) follow.
Age | Generation | Born |
18 to 25
25 to 40
40 to 60
60+
| Generation Next
Generation X
Baby boomers
Seniors
| 1981-1988
1966-1980
1946-1964
before 1946
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Ψ Senescence (sen-ESS-ents): The state of physical decline, in which the body gradually becomes less strong & efficient with age.
• Senescence starts when overall growth stops. The impact of ageing depends on lifestyle, & on the decisions made each day about consumption & exertion!
Ψ Homeostasis: The adjustment of the body's system to keep physiological functions in a state of equilibrium.
• Many body functions seek homeostasis.
• As the body ages, it takes longer for these adjustments to occur.
• Older bodies fine it harder to adapt to stresses.
Ψ Organ Reserve: The extra capacity of the heart, lungs, and other organs that make it possible for the body to withstand moments of intense or prolonged stress.
• With age, organ reserve is gradually depleted, but the rate of depletion depends on the individual's general state of health.
Ψ Most emerging adults believe
that marriage is a serious & desirable commitment that they except to achieve.
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Ψ Attitudes about the purpose of sex (in the US) fall into three categories. They follow.
• reproduction - 1/4 believe.
• relationship - Most believe it's to strengthen pair bonding.
• recreation - 1/4 believe.
Growth & Development
Robert C. Gates
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