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Tiredness, difficulty sleeping or joint and muscle pain is something that everyone has ever experienced. However, there is a percentage of the population is extremely tired permanently without any cause that justifies it. This is the most extreme exhaustion characteristic of Chronic Fatigue Syndrome, a disease of unknown cause that affects mainly women between 20 and 50 years.

1. What is Chronic Fatigue Syndrome (CFS)?
Symptoms. Patients have an increased temperature and the appearance of special nodes.
Chronic fatigue syndrome is a medical chart appears more or less rapidly and affects people aged between 20 and 50, mainly women. In many cases no previous symptoms, although most of the time has previously been strep.

Patients have an increased temperature and the appearance of special glands, small joint and muscle discomfort, headache, impaired memory or concentration and, above all, extreme fatigue that persists more than twenty-four hours after making an effort. This extreme tiredness, which is the hallmark of chronic fatigue syndrome, is inexplicable and not have any particular justification or apparent reason. Small is often accompanied by psychological disturbances such as insomnia, anxiety, nervousness or depression.

Most patients can make a normal life even though there are cases in which they are unable to perform their daily activities. In other patients manifested a significant exercise intolerance and weight bearing or go shopping.

2. Causes
Cause. The cause is attributed more prior infection with a virus of the herpes family.
Despite numerous studies, so far no one knows the origin that causes chronic fatigue syndrome although many factors are shuffled.

The cause is attributed more prior infection with a virus of the herpes family. Has been associated mainly with Epstein Barr virus, which causes infectious mononucleosis. There are also cases relating to a past or active infection with other markers of persistent viruses such as cytomegalovirus, herpes virus 6 and others.

Other factors that can influence are small immunological disorders, ie disorders of antibodies that mediate the body’s defense. Furthermore, it has considered the possibility that there may be little or no alterations in neuroendocrine, hypotension, central nervous system …

By determining antibodies can we know whether there has been prior infection with one of these viruses. However, there is no assurance that 100 per cent of cases the causes are these. A proportion of patients in whom there is no association with these viruses or have not previously had any kind of infection.

There is now talk of two types of chronic fatigue syndrome: the classic, caused by a viral infection, and idiopathic, which is one that has no demonstrable relationship to a virus of unknown origin.

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