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Heat syncope is fainting or dizziness as a result of overheating (syncope is the medical term for fainting). It is a type of heat illness. The basic symptom of heat syncope is fainting, with or without mental confusion. [1] Heat syncope is caused by peripheral vessel dilation, resulting in diminished blood flow to the brain and dehydration.
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]
Heat syncope occurs when heat exposure causes decreased blood volume and peripheral vasodilatation. [28] Position changes, especially during vigorous exercise in the heat, may lead to decreased blood flow to the brain. [28] Closely related to other causes of syncope related to hypotension (low blood pressure) such as orthostatic syncope. [9]
Find out how extreme heat can negatively affect diabetics, and how to stay safe in the summer. ... According to the same report, diabetes was listed as the eighth leading cause of death in the ...
Heat stroke is an acute temperature elevation caused by exposure to excessive heat, or combination of heat and humidity, that overwhelms the heat-regulating mechanisms of the body. The latter is a relatively rare side effect of many drugs, particularly those that affect the central nervous system .
At least 16 people have died from heat-related illnesses in South Korea as the country swelters under a prolonged heat wave with temperatures above 38 degrees Celsius (100 Fahrenheit) in some ...
Unlike heat exhaustion, heat cramps and heat syncope do not have systemic effects. Heat exhaustion is a precursor to heat stroke, a severe form of heat-related illness. Heat stroke is more likely than heat exhaustion to cause pallor, hot and dry skin, syncope, and dysfunction of the central nervous system (e.g., altered mental status, loss of ...
Reflex syncope can occur in otherwise healthy individuals, and has many possible causes, often trivial ones such as prolonged standing with the legs locked. [ citation needed ] The main danger of vasovagal syncope (or dizzy spells from vertigo) is the risk of injury by falling while unconscious.