How We Can Live Longer Essay - 1444 Words

How We Can Live Longer Introduction: I. Why do We Age A. Theories of Aging II. What is Longevity A. Life Span and Life Expectancy III. What determines Longevity III. Why Don’t Most Americans Live Past the Average Life Expectancy IV. Leading Causes Of Death (table) V. What Do We Do to Live Longer Conclusion: Introduction What is the fear of most humans? The fear is aging and death. In this paper you will find out a lot about aging. You will learn what longevity is, what determines it, the average length of life and how you can exceed it. You will find it amazing that doing simple things every day will help you to feel better an live longer.†¦show more content†¦The immune system then would attack them as it would any foreign substance, destroying the cells and impairing the body functions. Some other Theories are much more complicated. the programmed theories are: Programmed Senescence. Aging is the result of the sequential switching on and off of certain genes, with senescence being defined as time when age- associated deficits are manifested. Endoctrine Theory. Biological clocks act through hormones to control the pace of aging. Immunological Theory. A programmed decline in immune system functions leads to an increased disadvantage to infectious disease and as a result is aging and death. Error Theories include: Wear and Tear. Cells and tissue have vital part that wear out. Rate of Living. The greater an organism’s rate of oxygen basic metabolism, the shorter the life span. Cross linking. An accumulation of crossed linked proteins damage cells and tissues, slowing down bodily process. Free Radicals. Accumulated damage caused by oxygen radicals causes cells and eventually organs to stop functioning. Error Catastrophe. Damage to mechanisms that synthesize proteins results in faulty protein which accumulate to a level that causes catastrophic damage to cells and organs. Somatic Mutation. Genetic occur and accumulate with increasing age, causing cells to fall apart and stop working. Having read the list of theories you could gain anShow MoreRelatedThe Life Expectancy Of The 1900 S1411 Words   |  6 PagesThe life expectancy in the 1900’s was fifty years old. A hundred years later, the life expectancy has expanded to the late eighties and early nineties. In the 1900’s people weren t as blessed and fortuitous to have the things we use today. Back then people had to deal with the fact that they couldn t be cured of certain diseases, or illnesses that came across them. Today is different. 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