Scorching weather is forecast to hit the UK this week as the country experiences its fourth heatwave of the year. Temperatures could reach 35C across south-eastern England, with amber heat health alerts issued across much of the region. Yellow warnings are also in place across the South West, West Midlands and Yorkshire & The Humber.
Signs of dehydration
As temperatures rise, it is vital to recognise the warning signs of dehydration. Thirst itself indicates dehydration has already begun. Signs include:
- Feeling thirsty
- Headache and feeling light-headed
- Dark yellow, strong-smelling urine
- Urinating less often than usual
- Feeling dizzy or lightheaded
- Feeling tired
- A dry mouth, lips and tongue
- Sunken eyes
In babies, signs of dehydration are:
- A sunken soft spot (fontanelle) on top of the head
- Sunken eyes
- Few or no tears when crying
- Fewer wet nappies than usual
- Being drowsy or irritable
Preventing dehydration
To avoid dehydration during hot weather, sip water consistently throughout the day rather than drinking a large glass once a headache develops. The British Heart Foundation recommends setting regular water-drinking reminders on your phone, establishing a routine of drinking a glass of water immediately upon waking, while watching television, or during a morning commute. Adding natural flavourings such as a slice of lemon, a sprig of mint or cucumber can make hydration more enjoyable. Using an attractive water bottle and keeping it close at hand may also encourage more frequent drinking.
Hydration tips for children and babies
The NHS advises offering water at mealtimes and providing foods with high water content, such as jellies, melon and ice cream. For young children and babies, continue breastfeeding or formula, offering smaller amounts more frequently. If a baby is over six months old and on formula or solid food, offer small sips of water. For babies under six months, boil the water first and let it cool before giving it to them.
