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  1. Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)

    May 11, 2023 · Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complicated disorder. It causes extreme fatigue that lasts for at least six months. Symptoms worsen with …

  2. Chronic Fatigue Syndrome: Causes, Symptoms, and Treatment

    Oct 31, 2023 · Chronic fatigue syndrome (CFS) is a disorder characterized by extreme fatigue or tiredness that doesn’t go away with rest and can’t be explained by an underlying medical …

  3. Chronic Fatigue Syndrome (CFS) Causes - Who Gets It and Why

    Sep 25, 2024 · But myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS) isn't just being tired. It's a new state of fatigue that has lasted for at least 6 months and can be so …

  4. Chronic Fatigue Syndrome: Symptoms, Treatment, Tests

    Sep 6, 2025 · Chronic fatigue syndrome (CFS) is a condition that involves profound, long-term fatigue, brain fog, and other symptoms. Diseases commonly associated with CFS include …

  5. ME/CFS Basics | ME/CFS | CDC

    May 10, 2024 · Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a serious and often long-lasting illness that keeps people from doing their usual activities. It makes physical …

  6. Chronic Fatigue Syndrome - Harvard Health

    Jun 13, 2025 · Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complicated illness characterized by at least six months of extreme fatigue that is not relieved by rest, and …

  7. What is chronic fatigue syndrome? What is CFS? - USA TODAY

    4 days ago · Here’s what chronic fatigue syndrome is, why it happens and how people diagnosed with it can find relief.

  8. Chronic Fatigue Syndrome (CFS) - University of Rochester …

    What causes chronic fatigue syndrome? The cause of CFS isn't known. It may be from a viral infection in some people. But the exact cause is almost always unclear. Other possible causes …

  9. Chronic Fatigue Syndrome (CFS) - Massachusetts General Hospital

    Chronic fatigue syndrome (CFS) is a condition marked by profound tiredness, regardless of sleep. It's also called myalgic encephalomyelitis (ME). Symptoms often get worse with minimal …

  10. Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

    May 1, 2024 · Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a long-term illness. It causes severe fatigue and many other symptoms. Learn about managing them.