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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.
Human responses to heat stress can include heat stroke and overheating (hyperthermia). Extreme heat is also linked to acute kidney injury, low quality sleep, [21] [22] and complications with pregnancy. [23]: 1051 Furthermore, it may cause the deterioration of pre-existing cardiovascular and respiratory disease. [23]: 1624 Adverse pregnancy ...
Worker injuries attributable to heat include those caused by: sweaty palms, fogged-up safety glasses, and dizziness. [2] Burns may also occur as a result of accidental contact with hot surfaces or steam. In the United States, occupational heat stress is becoming more significant as the average temperatures increase but remains overlooked. There ...
An early stage of hyperthermia can be "heat exhaustion" (or "heat prostration" or "heat stress"), whose symptoms can include heavy sweating, rapid breathing and a fast, weak pulse. If the condition progresses to heat stroke, then hot, dry skin is typical [ 2 ] as blood vessels dilate in an attempt to increase heat loss.
From 1999-2023, the Journal of American Medical Association recorded 21,518 deaths where heat was either the underlying cause or the contributing cause of death, likely an underestimation, they say.
Rising body temperatures and a drop in blood pressure are where Lichfield said heat exhaustion turns into stroke, a dangerous situation where organs begin to fail and can rapidly lead to death.
About 400 deaths a year on average are directly due to heat in the United States. [55] The 1995 Chicago heat wave, one of the worst in US history, led to approximately 739 heat-related deaths over 5 days. [127] In the United States, the loss of human life in hot spells in summer exceeds that caused by all other weather events.
Heat-related death and throngs of visitors have Death Valley National Park officials emphasizing safety while visiting the park. Skip to main content. Sign in. Mail. 24/7 Help. For premium support ...