On average, a person only drinks about four glasses of water a day, according to research.

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A study of 2,000 adults revealed they typically drink less than the recommended daily amount of two litres.

Most people hydrate using tea and coffee instead with 44 per cent choosing the hot drink.

However 64 per cent are aware they should drink more water with 49 per cent claiming they often forget.

The research found four in 10 weren’t sure how much they drink in a typical day.

It also discovered residents in Liverpool drink the least water, followed by Manchester and Leeds.

The research was commissioned by Volvic Touch of Fruit and found 24 per cent are just too busy to fit regular sips into their schedule.

Gemma Morgan, a spokesperson for Volvic, said: “We’re seeing a nation struggling to stay hydrated despite knowing how crucial it is to maintain a healthy, balanced lifestyle.”

The research also found for 60 per cent, hydration is important to more than their physical health, as they agree they feel happier and healthier when they’ve drank enough.

In order to spot dehydration, 44 per cent recognise the dark colour of their urine as a tell-tale sign that they need to drink more.

This is followed by a dry mouth, headaches, and dry lips as the key signs that another glass of water might be in order.

For the new year, 28 per cent of adults have vowed to stay more hydrated.

Flavoured water is a favourite for 22 per cent, and 41 per cent have tried flavouring their own beverages as a way to convince themselves to drink more.

The study, carried out via OnePoll, also found 26 per cent would drink more water if it tasted better.

Gemma Morgan added: “We want people to know that drinking enough water is not only essential but can be done in a fun and delicious way, and we hope to help people achieve their goals.”

Following the findings, Made in Chelsea star Sophie Habboo has teamed up with Volvic Touch of Fruit to offer hydration hacks.