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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 ...
Lethargy is a state of tiredness, sleepiness, weariness, fatigue, sluggishness, or lack of energy. It can be accompanied by depression , decreased motivation, or apathy . Lethargy can be a normal response to inadequate sleep, overexertion, overworking, stress, lack of exercise, improper nutrition, drug abuse, boredom , or a symptom of an ...
Personal resources, such as status, social support, money, or shelter, may reduce or prevent an employee's emotional exhaustion. According to the Conservation of Resources theory (COR), people strive to obtain, retain and protect their personal resources, either instrumental (for example, money or shelter), social (such as social support or status), or psychological (for example, self-esteem ...
On top of all the physiological possibilities for causing tiredness, there are numerous psychological reasons, too. One of the biggest culprits is stress, which spikes our cortisol hormone, which ...
Wyatt says tiredness is more lifestyle-based, and can be affected by factors like sleep disruption, poor nutrition, dehydration, stress, and overall fitness level. Even mental fatigue can play a ...
Excessive stress and sleep deprivation can cause cardiovascular issues, such as high blood pressure and heart disease. In a study focusing on the impacts of chronic stress on the heart, it was found that during times of chronic stress, the body hyperactivates the sympathetic nervous system which leads to changes in heart rate variability. [22]
Directed attention fatigue (DAF) is a neuro-psychological phenomenon that results from overuse of the brain's inhibitory attention mechanisms, which handle incoming distractions while maintaining focus on a specific task. The greatest threat to a given focus of attention is competition from other stimuli that can cause a shift in focus.
Woman portraying the emotion of stress. Mental distress or psychological distress encompasses the symptoms and experiences of a person's internal life that are commonly held to be troubling, confusing or out of the ordinary. Mental distress can potentially lead to a change of behavior, affect a person's emotions in a negative way, and affect ...