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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 ...
Elevated levels of cortisol and chronic stress increase your risk of physical health problems. Since a stress response can increase your heart rate and blood pressure, chronic stress can lead to ...
Stress produces numerous physical and mental symptoms which vary according to each individual's situational factors. These can include a decline in physical health, such as headaches, chest pain, fatigue, sleep problems, [1] and depression. The process of stress management is a key factor that can lead to a happy and successful life in modern ...
The hallmark symptom is post-exertional malaise, a worsening of the illness which can start immediately or hours to days after even minor physical or mental activity. This "crash" can last from hours or days to several months. Further common symptoms include dizziness or faintness when upright and pain. [3] [10] The cause of the disease is ...
Stress is a conscious or unconscious psychological feeling or physical condition resulting from physical or mental 'positive or negative pressure' that overwhelms adaptive capacities. It is a psychological process initiated by events that threaten, harm or challenge an organism or that exceed available coping resources and it is characterized ...
Classified as a "conversion disorder" by the DSM-IV, a psychogenic disease is a condition in which mental stressors cause physical symptoms matching other disorders. The manifestation of physical symptoms without biologically identifiable cause results from disruptions in normal brain function due to psychological stress.
Patients may experience physical or mental fatigue. Physical fatigue can present as a feeling of exhaustion after exercise or limitation in daily activities. [12] Fibromyalgia fatigue can range from feeling mildly tired to flu-like exhaustion. Severe fatigue may come on suddenly and make it difficult to be active at all. [33]
The diagnosis of exhaustion disorder is designed to capture a state of illness far removed from the transient stress of everyday life. [10] The symptoms of exhaustion disorder include fatigue that does not improve with rest, [11] reduced stress tolerance and various physical symptoms. [12]