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Related Concept Videos

Homeostatic Imbalances in Body Temperature01:19

Homeostatic Imbalances in Body Temperature

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...
Factors Affecting Body Temperature01:28

Factors Affecting Body Temperature

As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may  include:
Thermoregulation01:26

Thermoregulation

The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
Body Temperature01:25

Body Temperature

The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
Body Temperature01:07

Body Temperature

Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C (97–99°F), remaining relatively stable...
Requirements for Human Life01:26

Requirements for Human Life

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.
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...

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Related Experiment Video

Updated: May 27, 2026

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
07:54

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

Age-dependent changes in temperature regulation - a mini review.

Clark M Blatteis1

  • 1Department of Physiology, College of Medicine, University of Tennessee Health Sciences Center, Memphis, 38163, USA. cblattei@uthsc.edu

Gerontology
|November 17, 2011
PubMed
Summary

Older adults have reduced body temperature regulation and tolerance to heat and cold due to age-related physiological changes. Maintaining core body temperature is vital for survival, especially in extreme environments.

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Area of Science:

  • Gerontology
  • Physiology
  • Thermoregulation

Background:

  • Aging is associated with decreased body temperature and limited tolerance to thermal extremes.
  • Thermoregulation involves multiple body systems, including cardiovascular and respiratory systems, which naturally decline with age.
  • Age-related physiological changes can significantly impair the body's ability to maintain thermal homeostasis.

Purpose of the Study:

  • To describe age-associated physiological changes affecting thermoregulation in older adults.
  • To highlight the impact of these changes on the ability of seniors to maintain body temperature in hot or cold environments.

Main Methods:

  • Review of physiological functions affected by aging.
  • Analysis of how age-related changes impact thermoregulatory capacity.
  • Examination of unavoidable deficits like skin and metabolic alterations.

Main Results:

  • Older individuals exhibit lower body temperatures and reduced tolerance to thermal extremes compared to younger people.
  • Deterioration of systems like cardiovascular and respiratory functions impacts overall thermoregulation.
  • Structural skin changes and metabolic alterations are unavoidable deficits affecting thermal homeostasis in the elderly.

Conclusions:

  • Age-related physiological decline compromises the ability of seniors to maintain core body temperature.
  • Thermoregulatory deficits in the elderly can threaten survival, particularly during exposure to environmental thermal stress.
  • Interventions like fitness training may mitigate some age-related thermoregulatory decrements, but some changes are irreversible.