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Increased Body Temperature01:25

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Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
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The Earth and its atmosphere have provided humans with air, water, and food, but these are not the only requirements for survival. Humans also require a specific range of temperature and pressure that the Earth and its atmosphere provides.
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In cold weather, masonry construction requires specific precautions to ensure mortar does not freeze before curing, as this can significantly weaken its strength and watertightness. Mortar temperature should be maintained between 60°F and 80°F to support proper hydration and curing. Below 40°F, mortar water must be heated, but should not exceed 120°F as high temperatures can reduce mortar's compressive and bond strength.
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A Preclinical Model of Exertional Heat Stroke in Mice
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Heat illness during initial military training.

Ali Everest1, N Taylor2

  • 1AH Health Policy, SHA(A), MOD, Andover, Hampshire, UK.

BMJ Military Health
|May 16, 2020
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Summary
This summary is machine-generated.

Exertional heat illness (EHI) affects fit individuals during strenuous activity. Modifying training programs effectively reduced EHI cases, though risk factors were not always present.

Keywords:
epidemiologyoccupational & industrial medicinesports medicine

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Area of Science:

  • Military Medicine
  • Environmental Physiology
  • Sports Science

Background:

  • Exertional heat illness (EHI) poses a significant risk to physically fit individuals during intense activities in temperate climates.
  • Previous research faced publication barriers, delaying the dissemination of findings on EHI in military training environments.

Purpose of the Study:

  • To investigate the relationship between reported EHI episodes and known risk factors.
  • To assess the impact of training program modifications on the incidence of EHI.

Main Methods:

  • A retrospective analysis of medical data from Officer Cadets at the Royal Military Academy Sandhurst (RMAS) over a two-year period.
  • Utilized diagnostic criteria including symptoms, core temperature, and laboratory tests to confirm EHI cases.

Main Results:

  • Out of 60 initially reported cases, 35 were confirmed as EHI after investigation, with 25 receiving alternative diagnoses.
  • Only a small number of confirmed EHI cases (n=12) had identifiable risk factors.
  • The majority of EHI cases involved seemingly fit individuals susceptible to heat illness under conditions not affecting the general population.

Conclusions:

  • Training program modifications demonstrated effectiveness in reducing EHI incidence.
  • Poor case definition and the absence of universal risk factors complicate EHI management.
  • Further research is needed to identify at-risk individuals during strenuous activities to further minimize EHI.