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Factors Affecting Body Temperature

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:

Decreased Body Temperature

Decreased Body Temperature

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 sustained extreme cold exposure, and severe...

Derivatives: Problem Solving

Derivatives: Problem Solving

Temperature-Dependent Growth of Brook TroutThe growth of brook trout is closely influenced by water temperature. Experimental data demonstrate how trout weight changes over a 24-day period in response to varying water temperatures. At lower temperatures, such as 15.5 degrees Celsius, brook trout show significant weight gain. However, as the temperature increases, the amount of weight gained steadily decreases. At the highest temperature measured, 24.4 degrees Celsius, trout experience a net...

Increased Body Temperature

Increased Body Temperature

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 response to an infection or illness.

Homeostatic Imbalances in Body Temperature

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...

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

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Updated: Jun 24, 2026

Thermal Limits Determination for Zooplankton Using a Heat Block

Thermal Limits Determination for Zooplankton Using a Heat Block

Published on: November 18, 2022

Summer temperature-related mortality: effect modification by previous winter mortality.

Massimo Stafoggia¹, Francesco Forastiere, Paola Michelozzi

¹Department of Epidemiology, Rome E Health Authority, Rome, Italy. stafoggia@asplazio.it

Epidemiology (Cambridge, Mass.)

|March 20, 2009

Summary

This summary is machine-generated.

Low winter mortality may increase elderly deaths during subsequent summer heatwaves. This suggests a link between seasonal mortality patterns and heat-related health risks in older populations.

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Last Updated: Jun 24, 2026

Thermal Limits Determination for Zooplankton Using a Heat Block

Thermal Limits Determination for Zooplankton Using a Heat Block

Published on: November 18, 2022

Area of Science:

Environmental epidemiology
Public health
Gerontology

Background:

Seasonal variations in mortality are well-documented, with higher rates in winter and lower rates in summer.
The impact of preceding winter mortality on subsequent summer temperature-mortality associations remains under-explored.

Purpose of the Study:

To investigate whether the association between summer temperature and mortality in the elderly is modified by the winter mortality rate of the preceding year.

Main Methods:

Utilized time-series analysis of elderly deaths in Rome (1987-2005).
Collected daily mean temperature and humidity data.
Assessed the effect modification of summer apparent temperature on mortality based on preceding winter mortality rates.

Main Results:

The association between summer apparent temperature and mortality was significantly stronger in years with low preceding winter mortality (RR=1.73 for 30°C vs. 20°C).
Attributable risks for summer heat were higher in low winter mortality years (28%) compared to medium (18%) or high (18%) winter mortality years.

Conclusions:

Years with lower winter mortality may lead to an increased pool of susceptible elderly individuals.
This susceptible population may be at higher risk of mortality from extreme summer temperatures.