... species, cultivated primarily in Peru, Bolivia, and Columbia, supply the world’s . It also can be harvested four times a year. Coca leaves have been used before recorded history by South American Indians, so the knowledge is derived totally from archaeological sources. Chewing coca leaves has been associated historically with the religious ceremonies of the Incas and reserved specifically for nobility. The coca plant was considered to be a gift from the gods and it was only used during religious rituals, burials, and other special purposes. By the time the Spaniards arrived in the 16th century, the Incan empire was in decline and the use of the leaves was widespr ...
Words: 1215 - Pages: 5
... a destruction or a functional failure of the T4-lymphocytes, also called 'helper cells`, which play a regulatory role in the production of antibodies in the immune system." In the course of the illness, the number of functional T4- cells is reduced greatly so that new anti-bodies cannot be produced and the defenceless patient remains exposed to a range of infections that under other circumstances would have been harmless. Most AIDS patients die from opportunistic infections rather than from the AIDS virus itself. The initial infection is characterized by diarrhea, erysipelas and intermittent fever. An apparent recovery follows after 2-3 weeks, and in many cases the ...
Words: 2424 - Pages: 9
... environmental needs of elderly patients. Three hospitals from different geographic locations were chosen for this study. At each hospital a care coordinator was chosen to be responsible for questionnaire review, communication with physicians, and further assessment and intervention when deemed necessary. Lists of patients 65 and older were generated from the caseloads of primary care physicians from the three hospital sites. The questionnaires were mailed out with physicians cover letters and consent forms in the summer of 1993. In the questionnaire patients were asked to assess their self-percieved notions of there medical and psychosocial needs, as well as th ...
Words: 1197 - Pages: 5
... affect nearly anyone for any number of reasons. It affects mainly adults both male and female. The individuals most at risk are people who engage in excessive and improper stretching and people who are involved heavily in athletic training. Bursitis can be caused by many things. For one, it can be caused by injury or overuse of a joint. Strenuous unfamiliar exercise also can cause Bursitis. Plus, such diseases as gout, arthritis, and chronic infection of a joint can be likely causes. But frequently the cause of Bursitis can not be determined. The only ways to prevent getting it are to wear protective gear when exorcising, practice appropriate warm ups and cool do ...
Words: 498 - Pages: 2
... at all times, they are payed at very good wages. Human beings have been suffering from disease since they first appeared on the earth about two and one -half million years ago. Throughout most of this time, they knew little about how the human body works or what causes disease. But medicine has gone through many stages throughout history. In prehistoric times, people believed that angry gods or evil spirits caused disease. To cure the sick, the gods had to be pacified or the evil spirits driven from the body. In time, this task became the job of the first "physicians".3 The first - known surgical treatment was an operation called trephining. Trephining in ...
Words: 1226 - Pages: 5
... 1928 there was a discovery by Alexander Fleming. He detected that a substance he called "penicillin" destroyed bacteria. Then in the late 1930's, two British scientists invented a method of extracting penicillin from the mold. This was the start of developing new drugs to treat diseases and bacteria. Over the years, numerous thousands of antibiotic material have been found in nature as well as produced chemically but, there are few that are safe and useful. However the ones that are safe and effective have saved many lives and have helped extend life expectancy. Right now, there is more than 70 different kinds of antibiotics in use. Most antibiotics are used to ...
Words: 1003 - Pages: 4
... and thoughts. In the same sense, music is more than just a collection of vibrations. This leads to the question of how does music affect the mind, and in addition, how does music affect human behavior? The reader might ask why such a question should be relevant. If more is known about the psychological and neurophysiological effects of music on the human mind, then the possibilities of this knowledge are unbounded. Music can be used to treat social and behavioral problems in people with disabilities. The use of music in the classroom might enhance or weaken a student's work characteristics. Therefore, whether the influence of music is positive or negative, muc ...
Words: 1995 - Pages: 8
... and muscle tissue without producing much of the androgenic effects of testosterone. There are only four legal uses for steroids treatment for certain forms of cancer, pituatary dwarfism, and serious hormone disturbances. There are two forms of anabolic steroids those taken orally and those injected. The immediate effects of both are mood swings of many different kinds. In one study, physicians Ian Wilson, Arthur Prang, Jr., and Patricio Lara found that four out of five men suffering from dippresion when given a steroid suffered from dillusions. A research team from Great Britian Found that a patient given steroids became dizzy, dissoriented, and incoherent. Phy ...
Words: 1685 - Pages: 7
... tremendous movement to make cigarettes illegal. Now the debate is on environmental tobacco smoke also known as secondhand smoke, passive smoking, and sidestream smoke. The worry is that when non-smokers are exposed to secondhand smoke they face the same health hazards as smokers. Tobacco smoke contains more than forty known carcinogens. Sidestream smoke carries these carcinogens into the air (Sussman 12). According to scientific studies tobacco smoke contains four thousand chemicals, and at least sixty are known to cause cancer. Carbon monoxide is the main gas in cigarette smoke. This gas competes with oxygen for binding sites on red blood cells, and results ...
Words: 246 - Pages: 1
... sleep. For instance, studies have shown that sleep is classified into four stages according to depth as a sleeper goes from a light sleep to a deep sleep. As people fall asleep they first enter stage one sleep. Research has shown stage one sleep to be the lightest of the four levels of sleep. In this stage the E. E. G, a machine that measures types of brain waves, shows many alpha signals. Alpha signals really are fast low voltage brain signals. The sleeper can also be easily awakened while in this stage of sleep. The next level of sleep is stage two. In which the brain shows sporatic brain wave signals which consist of high-voltage activity known as slee ...
Words: 2033 - Pages: 8
