Heatstroke results primarily from

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Heatstroke occurs when the body's temperature regulation mechanism fails, leading to a significant increase in body temperature. The primary cause of heatstroke is a loss of evaporative cooling, which occurs when the body is unable to sweat enough to cool itself. Sweat evaporation is the body's primary means of dissipating heat. Conductive cooling (A) occurs when heat is transferred from the body to a surface with a lower temperature, such as when sitting on a cool chair. Radiative cooling (C) occurs when heat is lost through radiation, such as when standing outside in the cold at night. Convective cooling (D) occurs when heat is lost through air movement, such as sitting in front of a fan. While these methods can aid in cooling the body, they are not the primary means of heat dissipation and are not as effective as evaporative cooling.

Heatstroke Results Primarily from