korratakseväsus

Korratakseväsus, or recurrent fatigue, refers to a pattern in which fatigue recurs over time with incomplete recovery between episodes and a noticeable impact on daily functioning. It is not a single disease but a symptom complex that can arise from a range of medical, sleep, psychiatric, and lifestyle-related factors. It is distinct from chronic fatigue syndrome (myalgic encephalomyelitis), where fatigue is typically persistent and accompanied by a broader set of core symptoms; korratakseväsus may involve episodic fatigue that improves when an underlying cause is treated.

Causes are multifactorial. Common contributors include iron deficiency or anemia, thyroid disorders, diabetes, infections, autoimmune diseases, sleep disorders (such as sleep apnea or insomnia), depression and anxiety, substance use or withdrawal, chronic pain conditions, medication side effects, and high stress or poor sleep hygiene. The condition often results from a combination of factors rather than a single origin.

Clinical presentation involves fatigue that is disproportionate to activity, fluctuating intensity, and partial or slow recovery between episodes. Individuals may also report sleep disturbances, headaches, muscle or joint pain, concentration difficulties, and reduced work or school performance. A thorough history and physical examination guide further testing.

Evaluation typically includes targeted laboratory work to rule out common medical causes: complete blood count, ferritin, thyroid-stimulating hormone, glucose or HbA1c, liver and kidney function, vitamin B12 and vitamin D as indicated, and inflammatory markers. Sleep assessment and psychiatric evaluation may be indicated.

Management emphasizes treating identifiable underlying conditions and improving overall energy through sleep hygiene, regular physical activity tailored to ability, balanced nutrition, hydration, stress management, and, when appropriate, cognitive-behavioral therapy. Pharmacologic treatment is used for diagnosed conditions rather than fatigue itself. Prognosis varies, with some experiencing episodic improvement and others facing recurrent relapses.