The wear and tear theory of aging believes that the effects of aging are caused by damage done to cells and body systems over time. Once they wear out‚ they can no longer function correctly. Dr. August Weismann‚ a German biologist‚ was the first introduced this theory in 1882. He believed that the body and its cells were damaged by overuse and abuse. The organs‚ liver‚ stomach‚ kidneys‚ skin and so on are worn down by toxins in our diet and in the environment. The excessive consumption of fat‚ sugar
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The immunological theory of aging‚ or immunosenescence‚ advances the idea that the immune system is programmed to decline over time. This programmed deterioration in immune system results in an increased vulnerability to infection disease‚ and thus leads to aging and death. The gradual deterioration of the immune system leads to loss of antibody efficacy‚ and with the body’s defense mechanisms against new diseases compromised‚ the body becomes more susceptible to cellular stress and eventual death
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Explain two theories of ageing Social disengagement theory This theory was originally proposed by Henry Williams and Elaine Cumming in 1961. According to this theory‚ as people age they disengage from society. This could be because older people would have restricted opportunities to connect with others. Social disengagement is a natural part of ageing where older people experience a reduction in social contact. The potential causes of disengagement could be: Ill health‚ this could be the loss of
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of lungs and kidneys‚ an increase in skin wrinkles and a deterioration in joints. Physical Changes in Late Adulthood The Aging Body *genetic preprogramming theories of aging: -theories that suggest that human cells have a built-in time limit to their reproduction‚ and that
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Ecological theories of human development consider the complex interactions between humans and their changing social and physical environments. Every member of society experiences these interactions in a different manner‚ depending on factors such as the amount of resources available to them or the interconnectedness of their support system at birth. As people age and as the macrosystem itself changes in response to events‚ people within the system shift to occupy different positions in society. People
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finally to aid the body to maintain fluid balance. This ‘human pump’ can be regarded as two pumps. The fist sized organ contains two muscular chambers; the upper chamber; the atrium and the lower; the ventricle. The right side of the heart pumps deoxygenated blood from the veins to the lungs for oxygenation‚ whilst the left side pumps oxygenated blood from the lungs to the body. It is important to note that the two sides are separated by a septum. The blood flows through the heart twice within one cycle
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Aging Theory Persuasive MJS University of Phoenix Aging Theory Persuasive Theories about becoming old usually begin with ideas or beliefs that an individual has. For example‚ one may forget that he or she has his or her glasses on top of his or her head. Some might consider this as the memory decreasing because of age. Theoretical scientists‚ however‚ must use theories‚ which were tested by hypotheses and will guide their research
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Aging‚ “The accumulation of diverse deleterious changes occurring in cells and tissues with advancing age that are responsible for the increased risk of disease and death.” (Tosato‚ 401). This major aspect of our life is still a mystery to scientists‚ however there are many theories behind the process‚ and reason humans and all living organisms age. Many studies have been performed to understand more about this phenomenon‚ yet no definitive theory has been stated. Free radical theory has been a popular
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RUNNING HEAD: ACTIVITY THEORY Activity Theory of Aging Long Island University-C.W. Post Campus Jennifer L. Bifulco Throughout this semester we have come across many psychological and social theories. From Vaillant’s aging well‚ to Erikson’s life stages‚ to Leont’ev’s activity theory‚ there is a lot to learn and to understand. For the purpose of this paper‚ I am going to focus on the Activity Theory of aging. After some thorough research on this topic I was able to come up with some great
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been different theories that explain the classic theories of adulthood development to the most recent theories of adulthood development. Finding a good article to learn about social development in adulthood‚ which is credible‚ can be hard unless you use a library that would have this information. The article that I am writing about has made it easier to understand adulthood social development and the issues that occur. The article that I am going to write about is Adulthood and Aging: Social Processes
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