PSYC 357 Chapter Notes - Chapter 4: Overactive Bladder, Hyperintensity, Boogie 2Nite

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 357
• Professor: Wendy Thornton

Document Summary

Tobacco: changes in skin also affect the appearance of the eyes, which increases in middle adulthood, the most significant lifestyle habit is exposure to the sun; radiation from the sun causes age changes known as photoaging. The sun"s ultraviolet rays accelerate the process of cross-linking, causing mutations that alter protein synthesis by the cells and increasing the production of free radicals. Body build: first set of changes in body build involves height. Studies show that people get shorter as they get older. Loss of height is due to the loss of bone material in the vertebrae. With the weakening of the vertebrae, the spine collapses and shortens in length: lean tissue, or fat-free mass (ffm) decreases. Mobility: beginning in the 40s (or earlier in the case of injury) each component of mobility undergoes significant age-related losses. Muscles: adult years are characterized by a progressive age-related loss of muscle tissues. Not smoking and maintaining a bmi of approximately 25.