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Related Concept Videos

Fatigue01:21

Fatigue

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...
Muscle Recovery and Fatigue01:24

Muscle Recovery and Fatigue

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 response...
Drug Toxicity: Dose-Dependent Reactions01:24

Drug Toxicity: Dose-Dependent Reactions

Drug toxicities can be stratified into pharmacological, pathological, or genotoxic based on their mechanisms. The incidence and severity of these toxicities generally increase with the drug's concentration in the body and exposure time.Pharmacological toxicity is evident when the therapeutic effects of drugs overshoot into adverse reactions in a predictable, dose-dependent manner. Central nervous system (CNS) depression from barbiturates is a classic example, with effects escalating from...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Fatigue Strength of Concrete01:22

Fatigue Strength of Concrete

Fatigue, in the context of materials science and engineering, refers to the weakening or failure of a material caused by repeatedly applied loads, even if these loads are below the strength limit of the material. Fatigue strength in concrete is a critical property that influences its durability and longevity. Concrete can fail in two ways due to fatigue. Static fatigue or creep rupture occurs under a constant load or one that increases slowly. The other failure mode is due to cyclical or...
Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial exposure to a...

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Evaluating the Role of Mitochondrial Function in Cancer-related Fatigue
08:56

Evaluating the Role of Mitochondrial Function in Cancer-related Fatigue

Published on: May 17, 2018

Relationship between fatigue and photosensitivity.

Yoshihito Shigihara1, Masaaki Tanaka, Yasuyoshi Watanabe

  • 1Osaka City University Graduate School of Medicine and RIKEN Center for Molecular Imaging Science, Japan.

Behavioral Medicine (Washington, D.C.)
|December 28, 2010
PubMed
Summary
This summary is machine-generated.

Fatigue is linked to photosensitivity, a key factor in video-game epilepsy. This study found a positive association between fatigue and photosensitivity in healthy medical students.

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The Treadmill Fatigue Test: A Simple, High-throughput Assay of Fatigue-like Behavior for the Mouse
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Evaluating the Role of Mitochondrial Function in Cancer-related Fatigue
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The Treadmill Fatigue Test: A Simple, High-throughput Assay of Fatigue-like Behavior for the Mouse
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Area of Science:

  • Neurology
  • Psychiatry

Background:

  • Photosensitivity is a primary trigger for video-game epilepsy.
  • Hypersensitivity in the central nervous system, potentially linked to fatigue, is associated with photosensitivity.

Purpose of the Study:

  • To determine the association between fatigue and photosensitivity.
  • To explore the relationship between central nervous system hypersensitivity and fatigue.

Main Methods:

  • A study group of 68 healthy medical students completed questionnaires.
  • The Chalder Fatigue Scale was used to assess fatigue.
  • Photosensitivity levels were also self-reported by participants.

Main Results:

  • Simple regression analysis revealed a positive association between fatigue and photosensitivity scores.
  • Multiple regression analyses, controlling for age, gender, and sleep, confirmed this positive association.
  • Fatigue score was significantly correlated with photosensitivity score.

Conclusions:

  • Fatigue is demonstrably associated with photosensitivity.
  • Findings suggest a novel perspective on the role of fatigue in neurological conditions like photosensitivity.