Variety of wear and tear on the body’s systems makes it less likely to be able to selfrepair & regenerate.
Skin: loss of fat and collagen in underlying tissue
→ wrinkles o o o
Hair: decline in melanin production
→ thinning graying and
Height: Bone loss in vertebrae
→ loss of height visio n, taste
, motor speed, physical strength
Cellular-Clock Theory o
Cells can divide approximately 100 times & then no longer able to reproduce
Free-Radical Theory o
Unstable oxygen molecules cause damage to
DNA and other cellular structures
Hormonal Stress Theory o
Aging lowers body’s ability to cope with stress.
Stress hormones stay around longer
Crystallized intelligence: o
Ability to use acquired knowledge, skills, and experience
→ increases with age
Fluid intelligence: o
Logical thinking and problem solving - thinking about new information
→ decreases with age
Processing speed: declines starting in middle adulthood
Memory: declines in general...might take longer, but likely to be accurate
Wisdom...INCREASES with age
Generativity versus Stagnation o
Making a contribution to the next generation o
Usually satisfied by having children and being positively involved parenting them.
Integrity versus Despair o
Last years of life involve looking back and evaluating one’s life...review and reminiscence!
Strong sense of integrity = experiencing life as a meaningful and coherent whole
→ faces last years with sense of meaning and low fear of death.
More selective about social relationships.
Old view of old age: leads to loneliness and disengagement
New view of old age: leads to enjoying life, hobbies and family
Happiness & life satisfaction increases with age...peaking at age 65!
Socioemotional Selectivity Theory: o awareness of limited time left
→ selective with social relationships so the most important ones can be maximized.
Embrace the moment - the present matters much more than the future or the past.
The more active and involved
the more satisfied and