As temperatures are set to soar to sweltering levels this week, spotting the signs of heat exhaustion or sunstroke could prove to be a matter of life or death.
Heatstroke, a life-threatening condition that occurs when your core body temperature reaches 40C or higher, will be a concern for millions on Monday and Tuesday as extreme weather warnings are issued.
After spending time in the hot sun, or not keeping properly hydrated, people can experience unpleasant symptoms of heat exhaustion - which can turn into heatstroke.
