sciam3 - Christine Probst 303458589 Life Sciences 2 Section...

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Christine Probst 303458589 Life Sciences 2 Section E Michelle Kim May 12, 2008 Word Count: Why do we age and can we stop it? If you take a look at the leading causes of death among Americans, you will notice an interesting pattern. Until the age of 44, the leading cause of death is accidents, mainly motor vehicle. Those between 45 and 64 years old are most affected by cancer and heart disease. Those 65 and older mainly die from heart disease and cancer, but also diseases of the brain and lungs. Also, increasing age marks an exponential increase in mortality, with only 20 deaths per 100,000 for ages 5-14 and 5,071 death per 100,000 in ages 24. The increased risk of mortality and physiologically life-threatening diseases is due to a process that we are all familiar with: aging. We may associate aging with wrinkly skin, frailty, and mental slowness. However, aging is scientifically defined as "an accumulation of random damage do the building blocks of life…that begins early in life and eventually exceeds the body's self repair capabilities" (page 30, course reader). In this paper, we will examine why we age, and whether or not the aging process effectively
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sciam3 - Christine Probst 303458589 Life Sciences 2 Section...

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