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In Australia from 2006 to 2019, extreme heat caused 252 deaths, with an additional 170 deaths contributed to by extreme heat. Heatstroke is a life‐threatening condition associated with an uncontrolled rise in core body temperature above 40°C. This occurs due to the failure of the body's compensatory mechanisms required to maintain thermal homeostasis. Classic heatstroke results from passive exposure to high temperatures and humidity, often during heatwaves and primarily affects the older population. Exertional heatstroke (EHS) tends to affect younger, healthier individuals during vigorous exercise. The prevalence of EHS is unknown and often underestimated.

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Authors: Nicholas Smith, Richard Skoien and Melita Andelkovic

Article Type: Medical Education