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In the brain, serotonin is a neurotransmitter and regulates arousal, behavior, sleep, and mood, among other things. [9] During prolonged exercise where central nervous system fatigue is present, serotonin levels in the brain are higher than normal physiological conditions; these higher levels can increase perceptions of effort and peripheral muscle fatigue. [9]
This sudden rise in body temperature affects an estimated 35 to 50 percent of perimenopausal women, according to Harvard Health. Again, the severity will differ from woman to woman—some may feel ...
In fact, according to research, chronic stress can bring about structural changes to the brain, mental health issues like anxiety and depression, and leading causes of death, such as cancer and ...
Fatigue in a medical context is used to cover experiences of low energy that are not caused by normal life. [2] [3]A 2021 review proposed a definition for fatigue as a starting point for discussion: "A multi-dimensional phenomenon in which the biophysiological, cognitive, motivational and emotional state of the body is affected resulting in significant impairment of the individual's ability to ...
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 ...
Your overall health status, age, genetic profile, and past experiences also influence how your body reacts to stress. As you get older, you might feel the effects of stress more harshly—or in a ...
An emotional hangover refers to the symptoms associated with a prolonged state of emotional exhaustion, which might occur following a highly emotional event, traumatic event or a stressful conversation. or situation due to cognitive dissonance and emotional processing, that may last for hours or days. They can also arise following intense ...
A lowered level of consciousness indicate a deficit in brain function. [4] Level of consciousness can be lowered when the brain receives insufficient oxygen (as occurs in hypoxia); insufficient blood (as occurs in shock, in children for example due to intussusception); or has an alteration in the brain's chemistry. [3]