Search results
Results from the WOW.Com Content Network
Simplified control circuit of human thermoregulation. [8]The core temperature of a human is regulated and stabilized primarily by the hypothalamus, a region of the brain linking the endocrine system to the nervous system, [9] and more specifically by the anterior hypothalamic nucleus and the adjacent preoptic area regions of the hypothalamus.
The saline cools the person's whole body by lowering the temperature of a person's blood. Catheters reduce temperature at rates ranging from 1.5 to 2 °C (2.7 to 3.6 °F) per hour. Through the use of the control unit, catheters can bring body temperature to within 0.1 °C (0.18 °F) of the target level.
The body temperature of a healthy person varies during the day by about 0.5 °C (0.9 °F) with lower temperatures in the morning and higher temperatures in the late afternoon and evening, as the body's needs and activities change. [15]
Normal body temperature is around 37°C (98.6°F), and hypothermia sets in when the core body temperature gets lower than 35 °C (95 °F). [2] Usually caused by prolonged exposure to cold temperatures, hypothermia is usually treated by methods that attempt to raise the body temperature back to a normal range. [3]
The human body always works to remain in homeostasis. One form of homeostasis is thermoregulation. Body temperature varies in every individual, but the average internal temperature is 37.0 °C (98.6 °F). [1] Sufficient stress from extreme external temperature may cause injury or death if it exceeds the ability of the body to thermoregulate.
Static stretching is the appropriate form of stretching to aid in the cooling down procedure. It aids in decreasing the body's temperature, removing lactic acid from the muscles and increasing flexibility. [5] Each stretch should be held for a minimum of 10–20 seconds and stretched to the point of mild discomfort but not pain. [7]
Alcohol also affects the temperature-regulating system in the brain, decreasing the body's ability to shiver and use energy that would normally aid the body in generating heat. [33] The overall effects of alcohol lead to a decrease in body temperature and a decreased ability to generate body heat in response to cold environments. [34]
Reducing body temperature extends the time interval that such stoppage can be survived. [2] At a brain temperature of 14 °C, blood circulation can be safely stopped for 30 to 40 minutes. [ 3 ] There is an increased incidence of brain injury at times longer than 40 minutes, but sometimes circulatory arrest for up to 60 minutes is used if life ...