UK heatwave: how to identify, prevent and treat heatstroke

As first ever national emergency red alert for heat is issued, here's how to spot the signs of heat exhaustion and heatstroke

With temperatures in the UK rising amid a summer heatwave, experts have warned the public to be on their guard against heat exhaustion and heatstroke, which can be life threatening. We take a look at how to spot the signs:

What are the signs of heat exhaustion?