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Heat exhaustion and heatstroke

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Introduction
Heat exhaustion and heatstroke are two heat-related health conditions. If they are not quickly treated, they can both be very serious.
Symptoms of heat exhaustion and heatstroke
If not treated quickly, heat exhaustion and heatstroke can be very serious. Dial 999 immediately to request an ambulance if you think someone has heatsroke.
Causes of heat exhaustion and heatstroke
Heat exhaustion and Heatstroke occur when the body is no longer able to cool itself and starts to overheat.
Treating heat exhaustion and heatstroke
Heat exhaustion and heatstroke need to be treated quickly. The first steps of treatment are to cool the person down and get them to drink cool water or rehydration fluids.
Preventing heat exhaustion and heatstroke
In a heatwave, stay out of the sun, particularly during the hottest parts of the day. If you have to go out, apply suncream, wear a hat and drink plenty of fluid.