... closely related virus that also produces AIDS. This virus, named HIV-2, occurs mainly in Africa. HIV-1 occurs throughout the world. HIV infects certain white blood cells, including T-helper cells and macrophages, that play key roles in the functioning of the immune system. The virus attaches to specific molecules found only on the surface of the cells. These molecules are called CD4 receptor molecules, and the cells themselves are often referred to as CD4 cells. When an AIDS virus enters one of these cells, the virus inserts its genes into the cell's reproductive system and uses it to produce more HIV. This inf ...

... and environmental factors influencing its development and manifestations. The disease is often progressive and fatal. It is characterized by continuous or periodic: impaired control over drinking, preoccupation with the drug alcohol, use of alcohol despite adverse consequences, and distortions in thinking, most notably denial. The rational for continued use of alcohol is centered on, Common addiction distortions. MENTAL FILTER: Magnify the negative details and eliminate the positive. E.g. - using alcohol is so incredible. It is the most pleasurable thing I know. (filter out the negative effects) POLARIZ ...

... vena cava. When this chamber contracts, blood is forced into the left ventricle and then by ventricular contraction into the aorta. Branching the aorta divides into a number of main branches, which in turn divide into smaller ones until the entire body is supplied by series of blood vessels. Portal circulation in addition to the pulmonary and systematic circulations described above, a subsidery to the venous system exists, known as portal circulation. A certain amount of blood from the intestine is collected into the portal vein and carried to the liver. Coronary circulation is the means by which the heart tiss ...

... will not develop the normal number of brain cells. Not even an excellent diet provided later could make up for the damage that has been done in the first six months of life. (Gerald, 1970, p.10) In this paper, I will be focusing on the importance of breast-feeding and the issue concerning breast-feeding and bottle-feeding. The issue of breast vs. bottle is very old and controversial. Many have argued that there's no way to really know the effects of breast-feeding, but studies have proved otherwise. It has been said that breast-feeding is the ideal method for feeding and nurturing infants, and that it is the bes ...

... and continue to push their beliefs. They feel so strongly about these beliefs that violence has broken out in some known instances. Pro-choice activists, on the other hand, also carry very strong points. They believe that the child inside them is their property and it's life doesn't be until birth. In 1973, the United States Supreme Court decided that as long as the baby lived in the womb, he or she would be the property of the mother. Because of this decision almost every third baby conceived in America is killed by abortion, over one and a half million babies a year (Willke vii). Many countries have followed our de ...

... are as different from each other as, oh, Micheal Wilson and Shirley Maclean. The left brain controls the right side of the body (this is reversed in about half of the 15 percent of the population that is left-handed) and, in essence, is logical analytical, judgemental and verbal. It's interested in the bottom line, in being efficent. The right brain controls the left side of the body and leans more to the creative, the intuitive. It is concerned more with the visual and emotional side of life. Most people, if they thought about it, would identify more with their left brain. In fact, many of us th ...

... and 50, but the disease can develop at any age and has been found in the elderly as well as the very young. The symptoms manifest themselves gradually, usually lasting for 15-20 years after first surfacing. Huntington's is an autosomal dominant genetic disorder, meaning that if a parent has the defective Huntington's gene, his/her offspring have a 50/50 chance of also developing the disease. Until 20 or so years ago, very little was known and very little literature was available pertaining to , but recently all that has changed. In 1993 the gene that causes HD was discovered and from that great progress has been ...

... has been growing slowly as various individuals and groups have attempted to gather data on the risks of participating in various sports. Almost all of these attempts have focused on sports in an organized setting, for younger age groups, and have involved relatively short-term observations. With the recent increase in participation in general fitness activities, and with such participation being encouraged by the medical community as a public health intervention to promote healthy lifestyles, it often is not realized there is little or no dependable data available to assess the risks involved in participati ...

... of leukemia is based on what organ it is attacking. Leukemia can be in acute or chronic form, which means it can happen rapidly, or be prolonged and severe (Bourne 996). To diagnose leukemia doctors have to insert a needle into the bone marrow to extract it and then then view it under a microscope to see if it has any abnormalities that relate to that of leukemia. Some of the symptoms that are involved with leukemia include: lack of energy, fever, susceptibility to infection (because of lack of white blood cells), excessive or repetitive bleeding, easy bruising, and also enlargement of the liver, spleen and lymph ...

... for their right to decide on their own. In this way, each side can say with certainty that the other side is wrong. Many people believe abortion is a moral issue, but it is also a constitutional issue. It is a woman's right to choose what she does with her body, and it should not be altered or influenced by anyone else. This right is guaranteed by the ninth amendment, which contains the right to privacy. The ninth amendment states: The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people. This right guarantees the right to women, if they s ...