Tuesday, January 29, 2019
Biological Theories of Aging
senescent is a biological phenomenon all the liveliness things are undergoing. We are not sure about whatsoeverthing in the globe except the maturement. We are approaching getting nearer to the death from the sequence of the birth onwards. No sustentation thing in the world has the business leader to defeat death as it pass alongs almosttimes naturally and sometimes accidently. senescent has un analogous dimensions like physical, psychological, and social. There are many biological theories with abide by to maturation. primary deadening, Non-programmed develop and Programmed Aging, Autoimmunity theory, Free radial theory, Telomerase Theory of Aging etc are some of them. This paper briefly explains some of the biological theories of aging menti one(a)d above. Aging Simple Deterioration Theory/ Wear and tear theory Simple Deterioration Theory argues that Aging is the accumulative burden of universal deteriorative processes such as oxidation, molecular damage, wear and te ar, or accumulation of adverse byproducts (Goldsmith, p. 3). Even though man and machine are two entirely different things, twain of them live with certain similarities in their functioning.No machine is able to function more(prenominal) than particular period of time because of the wear and tear due to regular workplace. Same musical mode bodies of the living things are also undergoing continuous work which causes damages to the parts of the body. Even though we refill the fuels in the make believe of food, nutrients and water, on that point are certain limitations for the body of the living things to survive for a longer period. In chemistry, most of the chemical reactions yield products and by-products. These by-products are not necessarily the intended one.Same way our body chemistry also yields different by-products which are harmful to our health and may reduce our life distich. At the same time we cannot avoid the production of such by-products Aging Non-programmed A ging Theory Non-programmed theory of aging believes that aging is a sboulder clay result of an organisms unfitness to better resist fundamental deteriorative processes. what is more aging serves no purpose, is not an adaptation, and is not programmed (Goldsmith, p. 8). Our body is undergoing bevy of changes and processes or so in very seconds. Most of the activities inside our body are beyond our control.For example, the pumping of blood by the heart is not done with our permission. We cannot stop any of the internal functions. Everything inside our body is tuned to do certain things and any malfunctions occur inside our body may result in diseases. We are passive observers of our body functions. Aging Programmed Aging Theory Organisms are purposely knowing and genetically programmed to age or former(a)wise limit life span because the deterioration and life span limitation serves an ontogenyary purpose (Goldsmith, p. 9). It is unacceptable to think of a world without death fo r living things.The earth business leader not be able to give shelter to all the living things if death was not in that respect. So as part of the natural evolution process, nature has programmed death natural and accidental to all the living things. venerable Weismann (18341914), the great German theorist and experimental biologist of the 19th century, was one of the first biologists to use evolutionary arguments to explain aging. His initial idea was that there exists a specific death-mechanism designed by natural selection to overhaul the old, and therefore worn-out, members of a population.The purpose of this programmed death of the old is to clean up the living space and to free up resources for younger generations (Gavrilov &Gavrilova) Aging Autoimmunity theory This theory argues that our body has the tendency to reject its own tissues with the change magnitude age (Biological theories of aging, p. 21). For example, it is difficult for the older people to take heavy fo ods because of digestion problems. Moreover, it is a fact that we are losing many hairs and skin and nail cells periodically. In other words, our body has the tendency to reject certain things as time passes.Free source theory Free radical theory says that certain chemical compounds in our body does damage which accumulates to produce aging (Biological theories of aging, p. 22). Our body is just like a factory. We know that a factory can produce lot of industrial wastes and these wastes can sometimes affect the functioning of the factory. Same way our body also produces lot of harmful wastes. Some of them will be released through, stools, urines, and sweats. tho most of the harmful wastes will be accumulated at some part of the body like Kidney. Kidney stone is a special K disease occurring in many people.Kidney failures can cause problems to the blood refinement purpose and death can happen. Telomerase Theory of Aging Discovered by scientists at the Geron Corporation, Telomerase Theory of Aging argues that telomeres (the sequences of nucleic acids extending from the ends of chromosomes), shorten every time a cell divides. This shortening of telomeres is believed to lead to cellular damage due to the inability of the cell to duplicate itself correctly. Each time a cell divides it duplicates itself a little worse than the time before, thus this eventually leads to cellular dysfunction, aging and indeed death (Kleinsek Ph.D. ) We have the ability to either accelerate or slow sown the DNA damage. Those who have the ability to slow passel the DNA damage may live much longer than those who have not such abilities. DNA can be repaired using near means up to certain extent which can delay the death. But under no circumstances, it is possible to avoid death as per the researches and findings till now. Conclusions Aging is a natural phenomenon incorporated to all the living things by nature in order to find spaces for the coming generation.Even though there are ma ny biological theories are there with respect to aging and death, all of them unanimously agree that death is inevitable.Works Cited 1. Biological Theories of Aging. 16 promenade 2010. 2. Gavrilov Leonid A and Gavrilova Natalia S. 2002. Evolutionary Theories of Aging and Longevity. 16 March 2010. 3. Goldsmith, Theodore. C. 2009. Theories of Biological Aging. 16 March 2010. 4. Kleinsek, Don Ph. D. Theories of Aging. 16 March 2010. http//www. antiaging-systems. com/agetheory. htm
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