As the UK is about swelter in its first heatwave summer, knowing when you’re dehydrated can help save you from heat exhaustion, or even fatal illnesses like heatstroke.
The Met Office has predicted the UK will get “a warm plume of air being drawn in from the south” that will bring hotter conditions, and will lead to the first heat-health alert of the year. The UK is expected to see highs of 30C in the coming weeks.
