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The World Health Organization (WHO) has defined health as "a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity." [ 16 ] Identified by the 2012 World Development Report as one of two key human capital endowments, health can influence an individual's ability to reach his or her full ...
Mental fatigue is a temporary inability to maintain optimal cognitive performance. The onset of mental fatigue during any cognitive activity is gradual, and depends upon an individual's cognitive ability, and also upon other factors, such as sleep deprivation and overall health. Mental fatigue has also been shown to decrease physical ...
Factors that may make the disease worse over days, but also over longer periods, are physical and mental exertion, a new infection, sleep deprivation, and emotional stress. [10]: 11 Some people who improve need to manage their activities to prevent a relapse. [11] Children and teenagers are more likely to recover or improve than adults.
Data from the China Family Panel Studies found a positive relationship between air pollution and mental illnesses, where an 18.04 μg/m3 increase in average PM 2.5 has a 6.67% increase in the probability of having a score corresponding with a severe mental illness, approximating a cost of US$22.88 billion in health expenditures associated with ...
The model builds upon the idea that "illness and health are the result of an interaction between biological, psychological, and social factors." [1] which according to Derick T. Wade and Peter W. Halligan, as of 2017, is generally accepted. The idea behind the model was to express mental distress as a triggered response of a disease that a ...
The fatigue must have lasted for 6 months or longer, and be present at least 50% of the time; Other symptoms are possible, such as muscle pain, mood problems, or sleep disturbance; Conditions known to cause severe fatigue and some mental conditions exclude a diagnosis. Post-infectious fatigue syndrome also requires evidence of a prior infection ...
[31] [32] Several physical and mental disorders may present with symptoms similar to exhaustion disorder, which makes it a diagnosis of exclusion. [33] Relevant physical alternative diagnoses are symptom dependent, but could include hypothyroidism , vitamin B 12 deficiency , COPD , cardiovascular disease and diabetes . [ 34 ]
Prolonged fatigue is fatigue that persists for more than a month, and chronic fatigue is fatigue that lasts at least six consecutive months, which may be caused by a physical or psychological illness, or may be idiopathic (no known cause). [1] Chronic fatigue with a known cause is twice as common as idiopathic chronic fatigue. [6]