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Related Concept Videos

Homeostatic Imbalances in Body Temperature01:19

Homeostatic Imbalances in Body Temperature

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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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A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
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Decreased Body Temperature01:29

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A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
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Spermatogenesis01:41

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Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
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Concreting at elevated temperatures accelerates the hydration process, leading to quicker setting but potentially reducing the long-term strength of the concrete structure. Additionally, low air humidity fosters rapid moisture loss from the concrete, resulting in reduced workability, pronounced plastic shrinkage, and a higher likelihood of crazing.
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Factors Affecting Body Temperature01:28

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As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
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Related Experiment Video

Updated: Jan 8, 2026

A Preclinical Model of Exertional Heat Stroke in Mice
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Extreme Heat During Pregnancy.

Summer S Hawkins

    Journal of Obstetric, Gynecologic, and Neonatal Nursing : JOGNN
    |December 16, 2025
    PubMed
    Summary

    Extreme heat poses significant risks, especially to pregnant women and vulnerable communities. Research highlights the need for systemic strategies to mitigate heat

    Area of Science:

    • Environmental Health
    • Maternal Health
    • Public Health

    Background:

    • Record-breaking temperatures in 2024 and projected heat in 2025 underscore the growing threat of extreme heat.
    • Extreme heat disproportionately affects pregnant women, communities of color, and low-resourced populations.
    • Existing evidence highlights adverse maternal and birth outcomes linked to heat exposure.

    Purpose of the Study:

    • To review current research on the health effects of extreme heat.
    • To examine the need for systems-level mitigation strategies.
    • To discuss implications for research, policy, and practice in addressing extreme heat.

    Main Methods:

    • Literature review of scientific research on extreme heat and health outcomes.
    • Analysis of existing policy and practice recommendations.

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  • Synthesis of information from professional organizations.

    • Main Results:

    • Growing evidence links extreme heat to negative maternal and birth outcomes.
    • Vulnerable populations bear a disproportionate burden of heat-related health issues.
    • There is a critical need for comprehensive, actionable recommendations and systemic interventions.

    Conclusions:

    • Urgent need for evidence-based, actionable recommendations to address extreme heat.
    • System-level mitigation strategies are essential for protecting maternal and child health.
    • Interdisciplinary collaboration in research, policy, and practice is crucial.