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Myalgic encephalomyelitis/chronic fatigue syndrome

Chronic medical condition

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 27, 2026
Entity authoritySource title only
Source-derived summary

Myalgic encephalomyelitis​/​chronic fatigue syndrome (ME/CFS) is a disabling chronic illness. People with ME/CFS experience profound fatigue that does not go away with rest, as well as problems with sleep and memory or concentration. The hallmark symptom is post-exertional malaise (PEM), a worsening of the illness that can start immediately or up to days after even minor physical or mental activity. This "crash" can last hours, days or several months. Further common symptoms include orthostatic intolerance—dizziness or faintness when upright—and pain.

Editorial summary

The public source identifies “Myalgic encephalomyelitis/chronic fatigue syndrome” as chronic medical condition. This brief keeps that definition visible, then builds a research path around Myalgic, encephalomyelitis and chronic.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current 80-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Myalgic, encephalomyelitis and chronic providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Myalgic encephalomyelitis/chronic fatigue syndrome”, the useful work is to connect “chronic medical condition” to the records capable of establishing context and consequence.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 27, 2026.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Myalgic encephalomyelitis/chronic fatigue syndrome”, its source revision and the description used here.
  2. Expand the search: follow Myalgic encephalomyelitis/chronic fatigue syndrome primary sources, Myalgic encephalomyelitis/chronic fatigue syndrome archive and Myalgic research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Myalgic encephalomyelitis/chronic fatigue syndrome”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
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Source & attribution

This entry incorporates text from “Myalgic encephalomyelitis/chronic fatigue syndrome” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.