Geography. Namibia is bordered on the north by Angola and Zambia, on the east by Botswana, and on the east and south by South Africa. It is for the most part a portion of the high plateau of southern Africa, with a general elevation of from 3,000 to 4,000 ft.n the late 15th century, the Portuguese explorer Bartolomeu Dias became the first European to visit Namibia. Formerly called South-West Africa, the territory became a German colony in 1884.
1 Charley horses in the upper leg are mainly caused by activities like running or jumping. 2  Some of the spasms occur because of the irritation of the nerve that connects to a muscle. 3  The most common type of Charley horse, found in the calf region, is often the result of kicking while swimming.
What Causes Charlie Horses. Charlie horse is the name given to a muscle spasm or cramp experienced by an individual, especially in the leg. The most probable area where Charlie horse strikes is the calf region and that too, at night, lasting for a few seconds to few hours, thus awakening the patient. At times, kidney dialysis has lead to the occurrence of Charley horse in the muscles. 2  Low levels of minerals, such as sodium, magnesium or potassium, in the body can be one of the reasons for Charlie horses. 3  Deficiency of calcium in pregnant women can also be another reason for the onset of Charley horse.