fatigue: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Last updated

Nov. 8, 2026

News •

Hair loss, confusion and constant fatigue signaled a life-threatening condition • Nov. 7, 2026, 1:00 PM ET (Washington Post)

Physiological signals help AI predict post-concussion headaches and fatigue • Oct. 30, 2026, 4:57 PM ET (News-Medical)

Facts

Also Known As	exhaustion

Videos

How to boost energy without caffeine

See All Videos →

Topics

impairment neurasthenia myalgic encephalomyelitis/chronic fatigue syndrome persistent depressive disorder pickwickian syndrome health nutrition mental health physical activity quality of life stress body mass index public health disease physical culture 20 Under 40: Young Shapers of the Future (Health and Medicine)

Dig Deeper: More Articles That Discuss This Topic

muscle disease: Fatigue