Why the Gulf summer dehydrates you in ways you do not notice
Dehydration in the UAE has a specific mechanism. Inland, in places like Al Ain or the desert edges of Dubai and Sharjah, summer humidity can drop low enough that sweat evaporates the instant it forms — you lose litres without ever feeling wet, which removes the body's most obvious warning signal. On the coast, the opposite problem: humidity in August can sit above 80 per cent, evaporation stalls, your cooling system fails, and you sweat even harder trying to compensate. Both routes end in the same place — significant water and electrolyte loss — but neither feels like the thirst you learned to recognise in a milder climate.
It is worth separating genuine dehydration from fatigue that merely resembles it. Feeling drained in August can also be poor sleep, low iron, a thyroid issue or a virus. A drip will temporarily improve how almost anyone feels — a litre of cool saline is pleasant — which is exactly why it can mask a problem that needed a blood test instead. If the tiredness is chronic rather than situational, book the test before the drip.