In 1979, Pol Pot and the Khmer Rouge were forced from power by the invading Vietnamese. Pol Pot officially resigned the leadership in 1985 but appears to have retained considerable influence.
Muscle fatigue. Muscle fatigue is the decline in ability of a muscle to generate force. It can be a result of vigorous exercise but abnormal fatigue may be caused by barriers to or interference with the different stages of muscle contraction.
There are numerous causes of fatigue symptoms. Examples of some treatable causes of fatigue include anemia, diabetes,thyroid disease, heart disease, COPD and sleep disorders (Table). Long lasting complaints of fatigue do not equate to chronic fatigue syndrome.