Man-made CFCs Are Jeopardizing Our Future
.... solvents (Caldara 20).
Industry began using CFCs in the World War II era. In 1973, atmospheric chemists F. Sherwood Rowland and Mario Molina of the University of California at Irvine postulated the connection between ozone depletion and CFCs. Although CFCs were found to be harmful to the ozone twenty three years ago they are still in active use today. According to The Alliance of Responsible CFC Policy, the value of the annual production of these chemicals in the U.S. alone plus the materials and services directly dependent on them is $135 billion (Caldara 21).
The ozone layer is a fragile swath of gas that absorbs almost al .....
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Diet And Disease
.... arteries and gallstones are to a large extent made up of cholesterol (19). When foods high in fat content are eaten, excessive amounts of cholesterol are made in the body. Individuals who have fat concentrated in the waist and abdomen instead of thighs and buttocks are prone to diseases that accompany obesity (Pruitt 121). Some of these diseases are: (in females) cancer of gallbladder, breast, uterus, and ovaries, (in males) cancer of colon, prostate, rectum. 'Saturated' fat is mainly found in animal foods. Other fats in the diet - 'poly-unsaturated' fats - tend to reduce the cholesterol in the body. This type of fat is fou .....
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Antibiotics
.... brought into contact with the bacteria.
It is believed that antibiotics interfere with the surface of bacteria cells, causing a change in their ability to reproduce. Testing the action of an antibiotic in the laboratory shows how much exposure to the drug is necessary to halt reproduction or to kill the bacteria. Although a large amount of an antibiotic taken at one time might kill the bacteria causing an illness, such a dose usually would make the person suffer from illness caused by the drug. Therefore, antibiotics are given in a series of smaller amounts. This assures that the bacteria are either killed or reduced enough in n .....
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Xenotransplantation
.... them being slaughtered for transplants since they are currently being killed for human consumption.
Xenotransplantation could affect the overall quality of human life, if perfected. People would suffer less from hemophilia, diabetes, Alzeimers, Parkinson’s diseases, and aids. People would no longer have to wait for transplants from other humans, for the animal supply would be abundant. It would affect me personally much in the same way. If any family member, friend, or even I myself were in need of a transplant of some sort, there would be necessary organs available from animals. The animals’ organs being functional .....
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Psychological Stress
.... Self-defeating thoughts are a way in which we almost deliberately block attainment of our needs. If in our heads, we have this preconceived notion that we are incapable of obtaining something that we want or that others could not possibly love us, we create a self-fulfilling prophecy. I used the word "deliberately" in describing self-doubt because we have the ability to change these misinformed thoughts.
Major life changes whether it be positive or negative can lead to very stressful situations. In our society, many people fall into a rut of everyday life and fear change to their daily routines. When any kind of change oc .....
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Effects Of Drugs On The Body
.... a tolerance to the drug. When this happens the user needs more and more of the drug to achieve the same effect.
If a person develops this type of tolerance and then stops using the drug he/she will suffer from drug withdrawal. The body then needs the drug so badly that the user will seek even more of the drug even though it is harmful. This condition is called addiction. Drug addiction ranks as one of the most serious health problems. For example, alcoholism or heroin addiction can destroy or seriously damage and individuals health and personal life.
The immediate effects of many abused drugs also involve serious risks. .....
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The Brain
.... layer of the cerebrum is called the cortex. The cortex is mainly made up of nerve cell fibres. The cerebrum cortex is folded into a surface with many ridges and grooves. This folding greatly increases the surface area of the cortex and the number of nerve cells it contains within the limited space of the skull. The largest portion of the cortex is the association brain cortex. Every region of the brain has areas of association cortex that analyse, process, and store information. These association areas make possible all our higher mental abilities, such as thinking, speaking, and remembering.
The cerebellum is the part .....
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Managing People With AIDS
.... Deficiency Syndrome. While AIDS itself does not kill a person, the disease weakens the person’s immune system, allowing other diseases like Kaposi’s sarcoma invade the body. These opportunistic diseases eventually overwhelm the person’s body. The virus is found in blood and other body products like saliva, sweat, and tears, and can only be transmitted by the exchange of blood, body products, or by sexual contact. Once the HIV virus is exposed to air, it dies instantaneously. This means that someone cannot spread the virus through breathing the same air, or by casual contact such as shaking hands. A person can be infected if he/she .....
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Heart Attacks And Its Causes
.... of cholesterol cause heart attacks may be attributed to this: LDL, or "bad" cholesterol, induces cells to produce proteins in the arterial walls of the heart and the veins leading to the heart. Macrophages eat the fatty substances in the heart and then die, causing a build up in the veins. Conventionally speaking, the blockage of LDL would be the onset of a very fatty diet. However, it has never been proved that the cholesterol is the cause of the injury to the arterial wall. Dr. Kilmer McCully has his own theory: high homocysteine levels are what make the veins and heart vulnerable to the harmful effects of cholesterol. .....
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Demanding Greatness: Steroid Use
.... But the two main ones are to excel in athletic competition and to look more like one’s ideal of a perfect body.”4 Many athletes are representing their school, state, or territory they come from at the competitions they are involved with. Most of these competitors don’t want to let down their fans in fear of rejection of being classified as a loser. Athletes might turn to drugs if they are looking to run faster, longer or to obtain a higher stamina. They might want to become tougher or grow larger muscles. Even sports that don’t require much physical activity, such as billiards or shooting, are affected by steroid use. Comp .....
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Fetal Alcohol Syndrome
.... developed filtrum, thin upper limit, flattening of the axillary area, and a short upturned or beak-like nose.
Some of the more serious effects that can be more dangerous are a poor dental alignment, optic nerve defects, and arterial septal defect (Welkselman, 297). Welkselman thinks that fetal alcohol syndrome affected infants frequently are measured at birth to be below the tenth percentile for their age in length, weight, and head size. These children never catch up to their peers and they remain in the tenth percentile for these measures throughout childhood (298). Physical effects are more common in children whose mothe .....
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Alzheimer’s Special Care Units
.... or a related forms of dementia.
In order to understand what benefits a person will receive from a special care unit, we must first examine what dementia is. When most people think of Alzheimer’s disease and related dementias, probably the first symptom to come to mind is forgetfulness of memory loss. While many people believe that senility is an inevitable symptom that comes with age, it is important to remember that memory loss is pathologically based, not age based. It is normal to forget where one put their keys-- that is not a problem. When one sees a set of keys, however, and cannot remember what they are or their fu .....
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