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  2. Fatigue - Wikipedia

    en.wikipedia.org/wiki/Fatigue

    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 ...

  3. Lethargy - Wikipedia

    en.wikipedia.org/wiki/Lethargy

    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 ...

  4. Central nervous system fatigue - Wikipedia

    en.wikipedia.org/wiki/Central_Nervous_System_Fatigue

    Central nervous system fatigue, or central fatigue, is a form of fatigue that is associated with changes in the synaptic concentration of neurotransmitters within the central nervous system (CNS; including the brain and spinal cord) which affects exercise performance and muscle function and cannot be explained by peripheral factors that affect muscle function.

  5. Aging movement control - Wikipedia

    en.wikipedia.org/wiki/Aging_movement_control

    For the knee extensors, old adults produce less torque during dynamic or isometric maximal voluntary contractions than young adults. The mechanisms controlling fatigue in the elderly during isometric contractions are not the same as those that influence fatigue during dynamic contractions, while young adults keep the same strategy.

  6. Frailty syndrome - Wikipedia

    en.wikipedia.org/wiki/Frailty_syndrome

    Frailty is a common and clinically significant grouping of symptoms that occurs in aging and older adults. These symptoms can include decreased physical abilities such as walking, excessive fatigue, and weight and muscle loss leading to declined physical status.

  7. Hypertensive emergency - Wikipedia

    en.wikipedia.org/wiki/Hypertensive_emergency

    Other common causes of hypertensive crises are autonomic hyperactivity such as pheochromocytoma, collagen-vascular diseases, drug use particularly stimulants, cocaine and amphetamines and their substituted analogues, monoamine oxidase inhibitors or food-drug interactions, spinal cord disorders, glomerulonephritis, head trauma, neoplasias ...

  8. Excessive daytime sleepiness - Wikipedia

    en.wikipedia.org/wiki/Excessive_daytime_sleepiness

    Causes Narcolepsy , idiopathic hypersomnia , circadian rhythm sleep disorder , sleep apnea , others Excessive daytime sleepiness ( EDS ) is characterized by persistent sleepiness and often a general lack of energy, even during the day after apparently adequate or even prolonged nighttime sleep.

  9. Dementia - Wikipedia

    en.wikipedia.org/wiki/Dementia

    It is one of the most common causes of disability among the elderly but can develop before the age of 65 when it is known as early-onset dementia or presenile dementia. [ 273 ] [ 274 ] Less than 1% of those with Alzheimer's have gene mutations that cause a much earlier development of the disease, around the age of 45, known as early-onset ...

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