Huntington’s disease, or Huntngton’s chorea, is a genetic disease that causes selective neural cell death, which results in chorea, or irregular, jerking movements of the limbs caused by involuntary muscle contractions, and dementia. It can cause a lack of concentration and depression. It also may cause atrophy of the caudate nucleus, a part of the…
Multiple sclerosis is one of the most misunderstood diseases of this century. Since it’s discovery, there is still no known causes, no proven treatments, and no known cure, yet it affects possibly five hundred thousand people in the United States alone. People need to learn more about this disease so it can be brought to…
Mumps is a disease caused by a virus and occurs only in human beings. Mumps is found all over the world. Mumps is a contagious disease when the salivary glands, on one or both sides of the jaw, swells. Mumps usually occurs in school age children, but young adults may catch the disease. Everyone born…
Osteoporosis is a significant health problem that affects more than 25 million women in the United States and potentially 200 million worldwide. This disease is characterized by diminishing the structure of the skeleton (particular the “spongy” bone). This results in an increased risk of fracture. Osteoporosis develops silently over a period of years, eventually progressing…
Premature babies, otherwise known as preterm babies, or preemies, are babies that are born earlier than the full-term of thirty-eight to forty-two weeks of pregnancy. These babies are generally born between the twentieth and thirty-eighth week. Almost 250,000 babies, nearly seven percent of newborns, are premature(Golant 4). Prematurity, even with all the advances in technology,…
Small pox, which was once the most feared disease known by mankind started out in the days of Christopher Columbus. The disease set out to change the lives of the people in the worse way. It became known as an epidemic disease that ended up killing hundreds of people. Small pox started out in Hispaniola…
Reye Syndrome is an extremely rare, non-contagious disease thought to be triggered by aspirin use. The actual origin of the disease is unknown. Reye’s Syndrome, occasionally called Reye-Jacobsen’s Syndrome, is known to follow any viral infection. Two of the most common viral infections it precedes is influenza, “the flu”, and chicken pox. A now-familiar warning…
Relaxation is what is expected at Toledo Bend, but this beautiful reservoir is full of surprises. From old fisherman on the lake or jet skiing, this lake is the place to be. Spectacular fishing spots are located by guides on the many tour boats. Hundreds of shallow beaches are open to the public along this…
Ritalin (Methylphenidate) is a mild CNS stimulant. In medicine, Ritalin’s primary use is treatment of Attention Deficit /Hyperactive Disorder (ADHD). The mode of action in humans is not completely understood, but Ritalin presumably activates the arousal system of the brain stem and the cortex to produce its stimulant effect. Recently, the frequency of diagnosis for…
Throughout history marijuana has been used to serve various purposes in many different cultures. The purposes have changed over time to fit in with the current lifestyles. This pattern is also true in American history. The use of marijuana has adapted to the social climate of the time. Marijuana, whose scientific name is cannabis sativa,…
While many drugs speed up or depress the central nervous system, there is a class of drugs that distorts how we feel, hear, see, smell, taste, and think. Called hallucinogens because users often hallucinate, or experience nonexistent sensations, these drugs are also known as psychedelic, or mind-bending, drugs. Some hallucinogens come from natural sources; others…
LSD or lysergic acid diethylamide is a commonly used drug of teens. LSD is a hallucinogenic drug which affects the nervous system. The drug is ingested in many different ways, absorbed through the skin, taken orally or absorbed through the eye or ear. This drug was originally developed by the government of the United States…
On the rocky plateau of Giza, rise three great pyramids, each built during the lifetime of a pharaoh. Together, these pyramids constitute the most celebrated group of monuments in the world. While the pyramids at Giza were built in the Fourth Dynasty (2615-2500 BC), the first pyramid was actually built in Saqqara during the reign…
The Ural Mountains are a rugged spine across Russia, running 1,300 miles from the fringe of the Arctic in the North, to the bend of the Ural River in the South. Traditionally they form a boundary between Europe and Asia. The north-south course of the Urals is relatively narrow, varying from about 20 to 90…
The Namib Desert is a parched and rippled desert, an endless expanse. It stretches along the wouthwest coast of Africa from Angola in the north, through Namibia, into South Africa. The name Namib means “emptiness.” About 1,700 km (1,060 mi long and 100 km (60 mi) wide, the desert is bordered on the west by…
Geographers can tell you that the one thing that most rivers and their adjacent flood plains in the world have in common is that they have rich histories associated with human settlement and development. This especially true in arid regions which are very dependent upon water. Two excellent examples are the Nile and the Tigris-Euphrates…
Location The Tundra is located in the northern regions of North America, Europe, Asia, as well as a few regions of Antarctica. The Tundra is the second largest vegetation zone in Canada. It can be divided clearly into three different sections: the High Arctic Tundra, the Low Arctic Tundra and the Alpine Tundra. The latter…
Climatology is one of the several branches of physical geography, but it differs from weather in several ways. The term climate implies an average, or long term record of weather conditions at a certain region. It conveys a generalization of all the recorded weather observations in a given area. Weather conditions are recorded in specifics…
Herpes is a name that is used to describe several types of skin eruptions that are characterized by formation of blisters. The term embraces primarily two distinct disorders, herpes simplex and herpes zoster, both caused by viruses. Together, these “herpes” viruses are estimated to cause more human illnesses than any other group of viruses. Two…
Female circumcision, better known as Female Genital Mutilation, is an ugly monster finally rearing its head from out of the depths of time. It can attack a girl at any age, with a little prompting from her society, and the aid of an unsuspecting human wielding the knife. Usually, it is performed from a few…