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Free research papers and essays on topics related to: free radicals

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  • Aging Theories - 1,709 words
    Aging Theories This report outlines the main theories of how the process of aging works. Since researchers have not discovered a universally-accepted theory of aging, the theories discussed are potential explanations of how we age. The likelihood of each hypothesis is considered roughly equal. The different theories discussed focus on the workings of different parts of the body, from the molecular level of DNA mutations and replication, to the organism level of becoming "worn out." Aging is a very complex and gradual process, and its ongoing operation is present to some degree in all individuals. It is a journey to the maturity, as well as to the degeneration of the body. Because aging affec ...
    Related: aging, aging process, cell division, free radicals, gradual
  • Aging Theories - 1,767 words
    ... ter a certain number of divisions, the clock genes are triggered and may produce proteins responsible for cell destruction (Keeton, 1992, 50). Cellular Aging In 1961, a discovery made by Leonard Hayflick showed that normal, diploid cells from such continually Areplaced@ parts of the body as skin, lungs, and bone marrow, divide a limited number of times. Although the cells stop dividing at the point just before DNA synthesis, they do not die. The longer-lived the species, the more divisions the cells undergo. As the age of an individual increases, the number of potential divisions decreases (Ricklefs and Finch, 1995, 29). This discovery was found using fibroblasts, or cells found in the c ...
    Related: aging, aging process, bone fracture, concise encyclopedia, testosterone
  • Alcohol Related Deaths - 1,122 words
    ... " which includes:  Low red meat  Low lard or butter, higher olive oil  High in fish  High in cheese, low in whole milk  High in breads, fruits, and vegetables  Light to moderate wine drinking Horvath says other studies have shown that wine drinkers may simply be more concerned about their health, as compared to non-drinkers, beer drinkers, or hard liquor drinkers. Some studies have shown wine drinkers tend to eat less fat, and more fruits, vegetables, and fish. This would coincide with the Mediterranean Diet. So why not simply drink more grape, or other dark fruit juices? Horvaths report said this would be beneficial, however other reports ...
    Related: alcohol, alcohol consumption, southern france, heart association, saving
  • Alzheimers Disease : Neurobiology, Causes And Treatments Of - 960 words
    Alzheimers Disease : Neurobiology, Causes And Treatments Of Alzheimers disease : Neurobiology, causes and treatments of Alzheimer's Disease (AD) is one of the most common of the dementing illnesses. A progressive, degenerative disease that attacks the brain, causing impaired memory, thinking and behavior. A person with Alzhiemers Disease may experience personality and behavior changes, impaired judgment, confusion and difficulty finishing thoughts, following directions or even finding the right word to say in a conversation. Once advanced the sufferer may require a caretaker as daily chores become very difficult to accomplish. Evidence points toward amyloid as one of the main causes for the ...
    Related: alzheimer's disease, alzheimers disease, diagnosis treatment, main causes, nitric oxide
  • Familial Hypercholeterolemia - 1,006 words
    Familial Hypercholeterolemia Familial Hypercholesterolemia Familial Hypercholesterolemia, a very dangerous and deadly genetic disease, has the potential to be passed via the parents DNA from one generation to the next. Although it is not common, people who suffer from this genetic flaw often times lead very short lives, as it increases their susceptibility to a wide range of other complications that can ultimately lead to death (Varret, 1999). Familial Hypercholesterolemia (FH) operates by not allowing cholesterol to move into the cells via the blood stream. This is due directly to the fact that protein receptors on the surface of the cell responsible for the uptake of cholesterol are either ...
    Related: familial, heart disease, blood pressure, heart attack, elasticity
  • Melatonin - 1,134 words
    ... en completely shot. Middleton thought the timing of the doses may have been off since everyones biological clock is different- eight o clock may not have been the correct time. Reviewing her research, Middleton found the two subjects that the melatonin did not work for had their highest body temperatures later in the day than the others. Usually, the lowest body temperature occurs during sleep and the highest in the middle of the day. The two subjects were receiving melatonin at different times in their metabolic cycles. Middleton repeated the experiment again, but with six subjects who received their melatonin when their temperature cycles corresponded with the two subjects in the first ...
    Related: aging process, late middle, scientific evidence, genital, tissue
  • Parkinsons Disease - 699 words
    Parkinsons Disease Parkinson Disease Damage to Broca's area in the frontal lobe causes difficulty in speaking and writing, a problem known as Broca's aphasia. Injury to Wernicke's area in the left temporal lobe results in an inability to comprehend spoken language, called Wernicke's aphasia. Cerebral palsy is a broad term for brain damage sustained close to birth that permanently affects motor function. The damage may take place either in the developing fetus, during birth, or just after birth and is the result of the faulty development or breaking down of motor pathways. Cerebral palsy is non-progressive that is, it does not worsen with time. During childhood development, the brain is parti ...
    Related: parkinson disease, parkinson's disease, childhood development, side effects, temporal
  • Reflexology - 2,043 words
    ... o helps in other ways such as reduction of pain, improvement in effectiveness of medication, and avoiding side effects of drug therapy while achieving results. -------------------------------------------------- ------------------------------ Reflexology normalizes gland and organ function Women who have recently given birth lactate earlier and more satisfactorily when given foot reflexology work. (21) 95% of women who experience amenorrhea find foot reflexology to be effective. (2) Reflexology improves the symptoms of 46% of those suffering from PMS. (24) Reflexology was found to be 87.5% of men experiencing impotence and 100% effective for other male sexual dysfunctions. (26) Indivi ...
    Related: reflexology, more effective, heart disease, belief system, fewer
  • Stress - 1,314 words
    Stress This research paper explains stress and its causes and cures. The research paper will attempt to determine whether there is an effective way to cure stress. Stress is an integral part of life. The complete absence of any stress results in death. Stress plays a key role in daily life, influencing - if not governing - happiness, productivity and health. Stress is known to cause various psychiatric disorders involving anxiety and depression, including posttraumatic stress disorder, major depression, generalized anxiety, and multiple personality disorders.This research will also attempt to explain ways to cure the illness's caused by Stress. The more stress one puts on thereselves the wea ...
    Related: posttraumatic stress, posttraumatic stress disorder, stress disorder, stress management, stress reduction
  • Vitamin C Amount Estimation By Dcpip - 2,339 words
    Vitamin C Amount Estimation By DCPIP Vitamin C (ascorbic acid) is a very important vitamin to the body. Vitamin C promotes healthy teeth and gums, helps absorption of iron, aids in maintenance of normal connective tissue, promotes wound healing, and helps boost the immune system. With vitamin C being such a useful substance to our bodies, finding good sources of vitamin C is important. Many people today rely on vitamin supplement tablets. But fruit juices, vitamin-supplemented drinks, or vitamin supplemented foods may contain just as much vitamin C as a supplement tablet. Which one is better though, commercially sold drinks or fresh fruit juices? This was the research question: Are commercia ...
    Related: estimation, vitamin, vitamin c, vitamin supplements, blood sugar
  • Vitamin Supplements: What Do Most Americans Need - 1,934 words
    Vitamin Supplements: What Do Most Americans Need? Vitamin supplements: What do most Americans need? Vitamin supplements: What do most Americans need? That is the question I will be attempting to answer in the following few pages. To start, I will talk about their beginning as well as their recent growth in popularity in the past decade. I will discuss the medical views that are for and against the use of supplements, what types are most important, and what types people need. To conclude, I will tell about the supplements that I take and whether I will continue to do so. Many years ago, there existed diseases such as scurvy, rickets, and everyday colds. These illnesses were the cause of a lot ...
    Related: american heart, vitamin, vitamin c, vitamin supplements, free radicals
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