Tags: Disease.
Heatstroke and Heatstrokes redirect here. For the film see Heatstroke (film). For the song by Krokus see Metal Rendez-vous.Heatstroke (or sunstroke) is a heat illness defined as a body temperature of greater than 40.6 °C (105.1 °F) due to environmental heat exposure with lack of thermoregulation. This is distinct from a fever where there is a physiological increase in the temperature set point of the body.Treatment involves rapid physical cooling.