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Related Concept Videos

Fatigue01:21

Fatigue

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Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
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Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
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To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
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Insufficient Sleep and Sleep Deprivation01:13

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Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
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Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
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Related Experiment Video

Updated: Apr 20, 2026

The Effect of Anti-Fatigue Decoction on the Behaviors and Serological Indicators in a Central Fatigue Rat Model
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Brain fag: New perspectives from case observations.

Peter O Ebigbo1, Elekwachi Chimezie Lekwas2, Nweze Felix Chukwunenyem2

  • 1University of Nigeria Enugu Campus (UNEC) peterebigbo@yahoo.com.

Transcultural Psychiatry
|December 4, 2014
PubMed
Summary

Brain fag, or brain fatigue, is a culture-bound syndrome experienced by African students. It may represent psychological distress from societal pressures rather than solely academic stress.

Keywords:
brain fagcoping and adaptationcultural syndromesdefense mechanismsidioms of distresssomatizationstressors

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Area of Science:

  • Psychiatry
  • Cultural Psychiatry
  • Medical Anthropology

Background:

  • Brain fag syndrome (BFS) was initially identified among West African students.
  • BFS is linked to the transition from oral traditions to reliance on written literature and Westernized education systems.
  • This educational shift can conflict with collectivistic African societal values.

Observation:

  • The study analyzed two typical and two atypical cases of brain fag.
  • Observations focused on the presentation of symptoms in academic and broader societal contexts.
  • Case details informed the understanding of the syndrome's potential functions.

Findings:

  • Brain fag symptoms may extend beyond academic pressures to encompass broader psychological distress.
  • Societal pressures exceeding individual coping capacity are implicated in BFS.
  • Symptoms like lack of concentration, somatic complaints, and sensations of heat might be defensive mechanisms.

Implications:

  • BFS could be an indicator of underlying psychological distress and societal pressures.
  • Understanding BFS requires considering both academic and socio-cultural factors.
  • The syndrome may serve a protective function, preventing more severe psychological decompensation.