Last Modified: 2012-04-23
Related Textbooks:Exploring Human Development: An Instructor's Media Tool Kit to Accompany Kathleen Stassen Berger's "The Development Person Through the Life Span ,6th Edition, Tape 2, Chapters 9-13
Related Textbooks:Psychology Ninth Edition in Modules
a universal pattern
relatedto chronological age
probablycontrolled by the genetic code
unusual rate of aging
Theories of Aging
Programmed Theories -- biologicalclock (Hayflick limit)
�Genesswitching on or off
� Error Theories -- accumulation ofmistakes
Normal Aging =Changes in the Cells
�� Cell Metabolism
��poorermetabolism = less energy
��problemswith repair and replacement
�� Cell Frameworks
��stiffer,less flexible connective tissue
�� Cell Communications
Net Result: All organsystems become less efficient with age
Reduction in physical energy
Reduction in mobility and coordination
Increased susceptibility to disease
acutevs. chronic illness
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