Part one of term paper
Why should the human body give out after 70, 80, or even 120 years? Why are older people more susceptible to disease, more inclined to have impaired vision and hearing, and likely to lose some of the physical and mental capacity they once enjoyed? There are no fully satisfactory answers to these questions. Although we are mortal, it is entire ...

Part two of term paper
... little to do with potential life expectancy, because most people have their life altered and cut short from disease and disability, not from aging. No one is so old as to think he cannot live one more year. -- Cicero (106-43 B.C.) It is still true that approximately 70% of all deaths in the United States are from heart disease, strokes, and cancer. Other diseases, accidents, and violence account for the rest--but not age. These same diseases and Alzheimer's disease account for much of the di ...