A) It is a fact that some life-span experts argue that biological aging begins at birth. Using the biological theories of aging as background, which are (1) Evolutionary Theory, (2) Cellular Clock Theory, (3) Free-Radical Theory, (4) Mitochondrial Theory, and (5) Hormonal Stress. Describe how each of these five theories explains changes in the brain as we reach late adulthood.
B) Review the details of "The Nun Study" directed by David Snowdon - it is an intriguing ongoing investigation of aging in 678 nuns, many of whom are from a convent in Mankato, Minnesota. (1) Describe how the cognitive functioning of late adults can be impaired or enhanced with stimulation and activity. (2) Explain how the results of "The Nun Study" are substantiated by the "Use It or Lose It" theory of cognitive functioning.
C) Does Staying intellectually challenged affect one's quality of life and longevity?