Chronic fatigue syndrome (CFS) is characterised by prolonged fatigue associated with a wide range of accompanying symptoms. It has also been called post-viral fatigue syndrome, myalgic encephalomyelitis (ME) or chronic fatigue.CFS can affect people of any age. However, it's most common between the ages of 25 and 45. It's estimated that about 150,000 people in the UK have CFS, with women affected more often than men.

Various researches conducted in China claim that acupuncture fights the symptoms of chronic fatigue syndrome. Western studies support this claim and even said that acupuncture also treats CFS-related illnesses like as fibromyalgia, depression, headache, and irritable bowel syndrome. One of the benefits that CFS patients feel after undergoing an acupuncture treatment is an enhanced immune system that allows them to enjoy a good night’s sleep. Getting the right amount of sleep every night is a key factor for faster recovery from CFS.

To assess the effectiveness of acupuncture treatment of chronic fatigue syndrome (CFS), China Academy of Chinese Medical Sciences has done a research about this.They selected articles including acupuncture and moxibustion, acupuncture, electroacupuncture, auricular acupuncture, auricular pellet pressure, plum-blossom needle, intradermal needle, moxibustion, three edged needle, cupping, cup-moving, acupoint injection...

Finally, they found that acupuncture therapy is effective for CFS, but still needs being confirmed by more high-quality studies.

Benefits of Acupuncture for CFS
Among the most noticeable benefits of acupuncture for CFS include:

Less pain
Better sleep
Relaxation
Enhanced immune system
Better overall health
A 2008 study was published, showing CFS patients who underwent 20 acupuncture treatments showed signs of major improvements that lasted three months. However, after two years without acupuncture, those patients displayed signs of susceptibility to CFS, which necessitated the need for another acupuncture treatment.
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Reference: Wang JJ, Song YJ, Wu ZC, Chu XO, Wang XH, Wang XJ, Wei LN, Wang QM. Zhen Ci Yan Jiu. 2009 Dec;34(6):421-8.

A UK study analysing samples from patients with chronic fatigue syndrome has found no evidence of a link with a retrovirus (XMRV). The virus was first described in 2006.Judy Mikovits, who led the research linking chronic fatigue syndrome to a mouse retrovirus called xenotropic murine leukaemia virus related virus (XMRV), has been sacked from her job, and Science, the journal that published the paper, is investigating allegations of image manipulation.

Patients with chronic fatigue syndrome, also known as myalgic encephalomyelitis, often report that their condition—a mix of symptoms including extreme fatigue—began after an otherwise normal viral infection

The event-related potential circadian rhythms are lost in CFS patients. Electroacupuncture at Shenshu (BL 23) and Zusanli (ST 36) can regulate the circadian rhythm of P3a and P3b latency and improve the cognition of the patients in daytime. (source:Zhongguo Zhen Jiu. 2010 Apr;30(4):309-12.)

Chronic fatigue syndrome may be caused by a rare mouse-related virus, new research suggests.
Scientists found evidence of murine leukaemia virus - known to cause cancer in mice - in 86 per cent of chronic fatigue patients.
Read more: http://www.dailymail.co.uk/health/article-1305691/Chronic-fatigue-syndrome-caused-mouse-related-virus.html?ITO=1490#ixzz0xYJ3joD0

Scientists in Scotland have found further evidence that ME, or Chronic Fatigue Syndrome, could be caused by a virus.

Blood tests conducted on children with the illness found abnormalities in their white blood cells which is seen as an indication of a viral infection.

BBC

Scientists have found encouraging people with ME to push themselves to their limits gives the best hope of recovery.

British researchers conducted the largest trial to date of people with the mysterious and debilitating condition and found that up to 60 per cent of patients improved if therapists encouraged them gradually to do more.

GMC rules against doctor who used unconventional tests and treatments for chronic fatigue syndrome

The U.S. Centers for Disease Control and Prevention mentions these common symptoms of chronic fatigue syndrome, which should be evaluated by a doctor:

Flu-like symptoms that may come and go, accompanied by weakness and extreme fatigue.
Fatigue for longer than 24 hours, even after sleep, and after exercise.
Aches and pains in the joints and muscles without redness or swelling.
Headache, typically of unusual severity or pattern.
Sore throat.
Tenderness in the lymph nodes of the neck or underarms.
-- Diana Kohnle