.... of skin cancer. Due to the reduction of ozone in the earth's atmosphere, UV radiation is higher today than it was several years ago. Ozone serves as a filter to screen out and reduce the UV light that reaches the earth's surface and its people. Very simply, sunburn and UV light can damage the skin and lead to skin cancer (1., p 1). The American Cancer Society also faulted repeated exposure to x-rays, artificial forms of UV radiation like tanning beds, and contact with chemicals like coal tar and arsenic as other causes of skin cancer (4., p 1). Additionally, if there is a .....

.... not find that much information on exactly how virologists find cures and vaccines. But I know that they need antibodies to make these cures. And there are two primary ways of making these antibodies. One, they can take them from patient zero. Patient zero would be where the virus originated from. Two, they could inject into an animal like a horse. If the animal, horse creates antibodies to fight off the virus, we take some of its blood. And from the plasma we extract the antibodies. Here is a method used long ago. Lets say that you were going to get vaccinated from t .....

.... to the lungs. Today we will talk about many different parts of the heart: The Three Layers of Muscle, Atriums, Ventricles, Systole and Diastole, Treatments for the Heart, Valves, and many Diseases. The Three Layers of Muscle The heart has three layers of a muscular wall. A thin layer of tissue, the pericardium covers the outside, and another layer, the endocardium, lines the inside. The myocardium is the middle layer and is the biggest of all. Myocardial Infarction is a disease later read about in this report. The pericardium is a fibrous sac which is ve .....

.... Circumstances and conditions leading to the termination of a pregnancy can vary widely. Whether caused by rape, incest, or age and ignorance, an unwanted pregnancy remains an unwanted pregnancy. Abortion causes a woman to choose between her life or the potential child's. This is always a hard decision to make. It involves a lot of thought, and may cause guilt or regret after the procedure; but dismissing that right to choose would not benefit anyone. Pregnancy can have horrible affects on adolescents causing medical problems, nervous breakdowns and emotional distress. It is sai .....

.... there comes a time when it is wrong, as well as useless to resist." -Steward Alsop, Stay of Execution Euthanasia has become an issue of increasing attention because of Dr. Jack Kevorkian's assisted suicides. As of October 21 Kevorkian has assisted in nineteen suicides. Because of the increasing number of suicides in Michigan, Gov. Engler signed an anti-suicide law in late February that made doctor-assisted suicides a felony. During the 21-month trial period of the new law anyone assisting in a suicide can be sentenced to up to four years in prison and .....

.... lying down our airways narrow as a result of gravity changes. Also our lungs do not clear secretions as well at night, which leads to mucous retention, and that can increase the obstruction to air flow. Furthermore, at night our bodies produce smaller amounts of certain chemical that help to decrease airway spasms and keep airway tubes open. All of these factors add up to a greater chance of symptoms worsening at night. An asthma attack begins when the smooth muscles in the walls of the bronchial tubes start to tighten and narrow when they are exposed to a trigger when this .....

.... 17th for both males and females. The highest death rates were in the Soviet Union, Romania, Poland, Bulgaria, Hungary, and Czechoslovakia. The lowest were in Japan, France, Spain, Switzerland, and Canada. (Goldstein, 1995) Biological theories abound state that women tend to have better chances of not developing Cardiovascular disease. In one study, (Mendelson, 1999) Estrogen therapy in postmenopausal women has been associated with a decreased risk of heart disease Women are less susceptible than men to as long as their blood estrogen levels are elevated. Estrogens can dir .....

.... it HIV-1 because several more forms were discovered. After the virus enters the bloodstream, it destroys white blood cells ( T-lymphocytes). Since they play a big role in the immune system, their presence is very damaging. also infects another part of the immune system. Once the virus gets to the macrophages, it doesn't destroy them, but instead it stores it there. Later the macrophages carry the virus to other vital systems. Early detection is a key factor in saving lives. Even though the infected person can not be cured, they can at least worn others who might contract th .....