Fatigue

====Neurological fatigue====

People with [[multiple sclerosis]] experience a form of overwhelming tiredness that can occur at any time of the day, for any duration, and that does not necessarily recur in a recognizable pattern for any given patient, referred to as "neurological fatigue", and often as "multiple sclerosis fatigue" or "lassitude".<ref name="pmid32672087">{{cite journal | vauthors = Hubbard AL, Golla H, Lausberg H | title = What's in a name? That which we call ''Multiple Sclerosis Fatigue'' | journal = Multiple Sclerosis | volume = 27 | issue = 7 | pages = 983–988 | date = June 2021 | pmid = 32672087 | pmc = 8142120 | doi = 10.1177/1352458520941481 }}</ref><ref>{{cite journal | vauthors = Mills RJ, Young CA, Pallant JF, Tennant A | title = Development of a patient reported outcome scale for fatigue in multiple sclerosis: The Neurological Fatigue Index (NFI-MS) | journal = Health and Quality of Life Outcomes | volume = 8 | page = 22 | date = February 2010 | pmid = 20152031 | pmc = 2834659 | doi = 10.1186/1477-7525-8-22 | doi-access = free }}</ref><ref>{{Cite web|url=https://www.tiktok.com/@msfighter101/video/7242002519809854763|title=TikTok - Make Your Day|website=www.tiktok.com|access-date=2024-03-26|archive-date=2024-03-26|archive-url=https://web.archive.org/web/20240326105609/https://www.tiktok.com/@msfighter101/video/7242002519809854763|url-status=live}}</ref>

People with [[autoimmune diseases]] including inflammatory rheumatic diseases such as [[rheumatoid arthritis]], [[psoriatic arthritis]] and primary [[Sjögren's syndrome]], experience similar fatigue.<ref name="pmid34599320"/><ref name="pmid31447842"/>
Attempts have been made to isolate causes of [[central nervous system fatigue]].