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    Did you mean Chronic Fatigue Syndrome?
    GlossaryChronic Fatigue Syndrome

    debilitating disorder causing extreme, unrelenting fatigue and cognitive issues

    Chronic Fatigue Syndrome (CFS), also known as myalgic encephalomyelitis (ME), is a complex and debilitating disorder characterized by extreme fatigue that doesn't improve with rest and worsens with physical or mental activity. The exact cause is unknown, but it is believed to involve a combination of genetic, environmental, and biological factors, and it often includes symptoms such as muscle pain, cognitive difficulties, and unrefreshing sleep.

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