ME stands for myalgic encephalomyelitis. Myalgic means muscle aches or pains, while encephalomyelitis means inflammation of the brain and spinal cord. Symptoms include muscular aches, joint pains, disturbed sleep, poor concentration and headaches.
There is no test for the condition, and there are also issues about its name - the term chronic fatigue syndrome is favoured by doctors, but many sufferers prefer the term ME.
CFS/ME affects around one in 300 people in the UK, and there are an estimated 2,000 sufferers in Sheffield. The condition is three times more common in women than men, and people in their early 20s to mid-40s are most susceptible. For more details about the specialist service call 0114 2292937, or the Sheffield ME Group on 0114 253 6700.