PSY 2114 Chapter Notes - Chapter 13: Saturated Fat, Cardiovascular Disease, Senescence

• School: University of Ottawa
• Department: Psychology
• Course: PSY 2114
• Professor: Eleanor Riesen

Document Summary

Genetic makeup: lifestyle, living environment, historical period. Chapter 13: physical & development in early childhood. Biological aging or senescence: genetically influence declines in organ & system functioning; begins once body structure reaches maximum capacity & efficiency; varies widely. Resulting physical changes of adult years are multidimensional & multidirectional (ch1, p6) Biological aging can be modified through physical & environmental interventions. Improved nutrition, medical treatment, sanitation, & safety added 25-30 years to avg life expectancy. Biological aging is under way in early adulthood: Peak in strength, endurance, sensory acuteness, immune system responsiveness during early 20s. Biological aging is has many cause: some operating at a dna & cell level, some operating at level of tissues, organs, & whole organism. Aging at the levels of dna & body cells: 2 types of biological aging at dna & body cell level: People with parents with long lives tend to live longer; similarity btw lifespan of id vs fraternal twins.