chronic fatigue syndrome

noun

: a disorder of unknown cause that is characterized by persistent profound fatigue usually accompanied by other symptoms (such as headache and tender lymph nodes) unrelated to any preexisting medical condition

—abbreviation CFS

Examples of chronic fatigue syndrome in a Sentence

Recent Examples on the Web

What’s happened with the pandemic and with COVID and the emergence of long COVID has been actually a pretty significant development for people with my condition, with chronic fatigue syndrome. —Hazlitt, 27 Sep. 2023

Other biological reasons could include unseen disabilities like chronic fatigue syndrome, or any number of chronic conditions that make exercise and dieting difficult. —Amber Smith, Discover Magazine, 21 Sep. 2023

The singer revealed that after multiple years of health issues, she’s been diagnosed with chronic fatigue syndrome, also known as Myalgic encephalomyelitis. —Starr Bowenbank, Billboard, 13 July 2023

The Daily Rally Sheri Tingey Embraces Her Second Chance The gear designer thought her career was over was stricken with chronic fatigue syndrome. —Sarah Vitak, Outside Online, 13 Apr. 2023

One of the main symptoms that affects people with long Covid is chronic fatigue syndrome or myalgic encephalitis (ME) — researchers have estimated that close to 50% of long Covid patients have ME that can persist for several months on end. —Anuradha Varanasi, Forbes, 21 Feb. 2023

In fact, an imbalance in the gut, known as dysbiosis, has been associated with the development of anxiety, obesity, diabetes, depression, multiple sclerosis, chronic fatigue syndrome and other disorders, the same paper said. —Katie Camero, NBC News, 19 July 2023

For Coda, David Tuller tells the story of Maeve Boothby O’Neill, a bright young woman in England who was diagnosed in 2012 with myalgic encephalomyelitis or ME — also known as chronic fatigue syndrome — after several years of constant exhaustion and poor health. —Cheri Lucas Rowlands, Longreads, 1 Feb. 2023

Other causes linked to brain fog include poor sleep, hormonal changes, long Covid, anxiety and depression, certain medications, and a number of conditions, from anaemia and chronic fatigue syndrome to migraines and lupus. —Hannah Coates, Vogue, 3 Feb. 2023

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Word History

First Known Use

1947, in the meaning defined above

Medical Definition

chronic fatigue syndrome

noun

: a disorder of uncertain cause that is characterized by persistent profound fatigue usually accompanied by impairment in short-term memory or concentration, sore throat, tender lymph nodes, muscle or joint pain, and headache unrelated to any preexisting medical condition and that typically has an onset at about 30 years of age

—abbreviation CFS

called also myalgic encephalomyelitis