chapter 1 Flashcards
four reasons of increasing elderly people
- high birthrate
- high number of births
- decline in childhood death rate
- increased life expectancy
what is aging
irreversible type of developmental change
3 types of development changes
- development
- maturation
- aging
what is biological aging?
changes in the physical structures and functioning of the body that affects a person’s ability to survive and or their appearance
what do cells do?
- produce the substance of the body
- perform all of the body’s functions
what is homeostasis?
steady conditions required for life
three steps of negative feedback
- detecting deviation from homeostasis
- informing the body to correct the problem
- adjusting to restore normal condition
two ways aging affects homeostasis
- more rapid/extreme alterations
- reduced functioning of negative feedback
types of aging
biological
chronological
cosmetic
social
psychological
economic
chronological aging
the passage of time
cosmetic aging
changes in appearance
social aging
changes in interaction with others
psychological aging
changes that affect thinking and behavior
economic aging
changes in financial status
why does disease often accompany aging?
- loss of homeostasis
- some diseases progress slowly
- likelihood and frequency of exposure to disease-promoting factors increases
two basic methods of studying biological aging
- cross-sectional: compares the average characteristics of people from different age categories
- longitudinal: follows the characteristics of a group of people of a particular age over time
