Staying Hydrated: A Practical Guide for Everyday Life

Water is involved in almost everything the body does, from regulating temperature to helping the kidneys clear waste. Most healthy adults manage their fluid intake without thinking about it, guided by thirst. But busy days, hot weather, exercise, illness and recovery can all make it easier to fall short. A few simple habits help keep things on track.

How much is enough?

In the UK, general guidance suggests aiming for around six to eight cups or glasses of fluid a day. That is a rough guide rather than a strict rule. You will need more in hot weather, when you are physically active, or if you are unwell with a fever, vomiting or diarrhoea. Some people, such as those with certain heart or kidney conditions, may have been advised to limit their fluid intake, so follow any advice from your own doctor.

What counts

Water is the best choice, as it hydrates without adding sugar or calories. But other drinks count too:

• milk and unsweetened plant drinks
• tea and coffee, in moderation
• sugar-free squash and flavoured water
• soups and foods with high water content, such as fruit, vegetables and yoghurt

Fruit juice and smoothies also count, but because they contain free sugars it is generally suggested to keep them to a small glass a day. Sugary fizzy drinks are best kept as an occasional treat. Alcohol is not a good way to stay hydrated.

Signs you may need more

Thirst is the obvious signal, but there are others. Dark yellow urine, needing the toilet less often than usual, headaches, tiredness, dizziness and a dry mouth can all suggest you are not drinking enough. Pale straw-coloured urine is usually a sign you are well hydrated.

Older adults may not feel thirsty as readily, and young children rely on adults to offer drinks regularly, so it is worth keeping an eye on both.

Habits that help

If you tend to forget to drink, a few routines can make it easier:

• keep a refillable bottle with you and refill it at set times
• have a glass of water with every meal
• start the day with a drink before your first coffee
• add slices of fruit, cucumber or mint if plain water feels boring
• drink a little more before, during and after exercise

During recovery from injury or illness, keeping a drink within easy reach makes a surprising difference, especially if moving around is difficult.

Hot days and exercise

In warm weather or during hard exercise you lose more fluid through sweat. Drink regularly rather than waiting until you feel very thirsty. For most everyday activity, water is enough; special sports drinks are not usually necessary unless you are exercising intensely for long periods.

When to seek help

Mild dehydration usually improves quickly with extra fluids. But if someone is very drowsy, confused, has not passed urine for many hours, or cannot keep fluids down, seek medical advice promptly through your GP or NHS 111, or call 999 in an emergency.

A simple habit with big benefits

Staying well hydrated is one of the easiest ways to support your energy, concentration and overall health. A bottle by your side and a few regular habits are usually all it takes.