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Who can suffer from chronic fatigue
Chronic fatigue syndrome (CFS) has been initially called "yuppie flu". The reason for that was the fact that those who sought help for it, causing scientific interest in the 1980s, were mainly well-educated, well-off women in their 30s and 40s. However, since then, doctors had to deal with the CFS in people of all ages and social and economic classes from several countries around the world, mostly English-speaking countries.
The frequently reported age of the persons having is 35 years. A large majority of cases is said to occur between the ages of 18 and 60 years, but there are cases of or old people.
For unknown reasons, CFS is diagnosed two up to four times more often in women than in men. But because there is no specific laboratory test or clinical sign for CFS, there is impossible to know the exact number of people affected by this illness. The Centers for Disease Control and Prevention (CDC) estimate half of million people suffer from CFS or a CFS-like condition in the United States.
Establishing who can manifest chronic fatigue implies a combination of factors analysis: viruses, environmental toxins, stress and genetic predisposition, because those are the suspected causes of CFS. | 
