The 5 signs you’re dangerously dehydrated as UK swelters in 37C heat
BRITAIN baked in a 37C heatwave over the weekend - and plenty will have sought the cool relief from a fan or some shade.
But with the sweltering temperatures set to linger this week, many of us probably aren't drinking as much as water as our bodies need to cope.
In fact, research has shown that 90 per cent of Brits don't drink the recommended six to eight glasses of water a day.
And when we have scorching weather like we've had over the last few days, the NHS says that should only be increased.
Yet, some people admit to only drinking 250ml of water daily - even in a heatwave.
Staying hydrated is vital for breathing, digestion, and just about every basic bodily function.
Sweating on a hot day can cause us to lose water quickly, so we need to remember to replenish our stores.
If it's not treated, dehydration can get a lot worse and lead to serious complications, such as heatstroke, seizures and even kidney failure.
Here are five warning signs you may not realise that you need to look out for...
1. Headaches
One of the first and most recognisable signs that you're feeling even mildly dehydrated is a splitting headache.
It's thought headache pain may be linked to low blood pressure due to water loss.
So before you reach for the painkillers, consider whether you've drunk enough water.
Chances are you probably haven't and the best step is to grab a bottle and hydrate.
2. Difficulty concentrating
Does your mind start to wander when doing simple everyday tasks?
Our brains are made up of 70 per cent water and experts say that dehydration can affect alertness, concentration and memory.
Studies have shown that even slight dehydration can cause driving mistakes, so it's vital to stay hydrated - especially if you plan to get behind the wheel.
3. Low energy
Even mild dehydration can make you feel like you're lacking in energy.
And when you're on your reserve tank it can leave your mood low too.
Keep a drink of water nearby to remind yourself to take a sip of water and re-hydrate.
4. Constipation
If you've noticed your having difficult or fewer bowel movements, then you might not be getting enough water.
Water is needed to help digest food and move waste along your digestive tract.
Dehydration is one of the most common causes of chronic constipation, so definitely drink up.
5. Unmotivated
Lacking motivation - especially to exercise - could be a sign of dehydration.
Research has shown that losing just two per cent of your body's water can make you feel more fatigued and less motivated.
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To reduce the risk of dehydration, the NHS recommends drinking water when you feel any of these symptoms.
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If you find it hard to drink because you feel sick or have been sick, start with small sips and then gradually drink more.
You should drink enough during the day so your pee is a pale yellow to clear colour, experts say.