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Fatigue is a state of tiredness (which is not sleepiness), exhaustion [1] or loss of energy. [2] [3]Fatigue (in the medical sense) is sometimes associated with medical conditions including autoimmune disease, organ failure, chronic pain conditions, mood disorders, heart disease, infectious diseases, and post-infectious-disease states. [4]
This is a list of major and frequently observed neurological disorders (e.g., Alzheimer's disease), symptoms (e.g., back pain), signs (e.g., aphasia) and syndromes (e.g., Aicardi syndrome). There is disagreement over the definitions and criteria used to delineate various disorders and whether some of these conditions should be classified as ...
The 2021 NICE committee stated they consider the term PEM outdated, as it may give the impression of just a "vague discomfort", and argued that the term post-exertional symptom exacerbation better captures the symptom. Nonetheless, they decided to continue using PEM as it is the more familiar term. [10]: 49
Other diseases which mimic syncope include seizure, low blood sugar, certain types of stroke, and paroxysmal spells. [ 9 ] [ 42 ] While these may appear as "fainting", they do not fit the strict definition of syncope being a sudden reversible loss of consciousness due to decreased blood flow to the brain.
Somatic symptom disorder, also known as somatoform disorder or somatization disorder, is defined by one or more chronic physical symptoms that coincide with excessive and maladaptive thoughts, emotions, and behaviors connected to those symptoms.
Eventually he separated it from anxiety neurosis, though he believed that a combination of the two conditions existed in many cases. [3] In 19th-century Britain and, by extension, across the British Empire, neurasthenia was also used to describe mental exhaustion or fatigue in “brain workers” or in the context of “overstudy”. [15]
Exhaustion disorder and depression have several overlapping symptoms and often occur simultaneously, [14] but many people suffering from exhaustion disorder do not satisfy the diagnostic criteria for depression. [15] Symptom overlap between exhaustion disorder and other mental disorders is not unusual, but rather a common theme among mental ...
Late-life depression is often underdiagnosed, which is due to numerous reasons, including that depressed mood is commonly not as prominent as other somatic and psychotic symptoms such as loss of appetite, disruptions in sleep, lack of energy or anergia, fatigue, and loss of interest and enjoyment in normal life activities.