Search results
Results from the WOW.Com Content Network
In haemodynamics, the body must respond to physical activities, external temperature, and other factors by homeostatically adjusting its blood flow to deliver nutrients such as oxygen and glucose to stressed tissues and allow them to function. Haemodynamic response (HR) allows the rapid delivery of blood to active neuronal tissues. The brain ...
Effects on the body include weakness and mild-to-moderate dehydration from the severe anxiety and both blood and sweat loss. [ 9 ] The condition is very rare, but there are reports in the medical literature of successful treatment with beta blockers ( propranolol 10 mg), [ 10 ] [ 11 ] with significant reduction in the frequency of spontaneous ...
[4] [28] Stress can affect children's growth and development, including the onset of puberty. [28] Some of the physical cues that may be indicative of stress in children are rashes on skin and skin diseases such as eczema , acne and hair loss , worsening asthma , insomnia or hypersomnia, frequent headaches, muscle aches, vomiting, constipation ...
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] Other circumstances also affect the body's temperature.
Heat illness is a spectrum of disorders due to increased body temperature. It can be caused by either environmental conditions or by exertion. It includes minor conditions such as heat cramps, heat syncope, and heat exhaustion as well as the more severe condition known as heat stroke. [1] It can affect any or all anatomical systems. [2]
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.
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.
Signs and symptoms are also applied to physiological states outside the context of disease, as for example when referring to the signs and symptoms of pregnancy, or the symptoms of dehydration. Sometimes a disease may be present without showing any signs or symptoms when it is known as being asymptomatic . [ 13 ]