UK Heatwave: 10 Hidden Signs You're Secretly Dehydrated

Britain"s record-breaking heatwave has sent temperatures soaring and increased the risk of dehydration for millions of people.

While thirst is the most obvious warning sign, dehydration often develops quietly before many people realize there"s a problem.

Health experts warn that even mild dehydration can affect your brain, heart, muscles, and overall wellbeing, especially during prolonged hot weather. 

Here are the 10 hidden signs you"re secretly dehydrated during the UK heatwave—and how to respond before the situation becomes serious.