A study involving more than 20,000 people claims that hydration is the keep to a good night's sleep.
Many people don’t get enough sleep, with a recent study claiming that the average Briton gets just six hours of shut-eye a night.
This study suggests that if you're not getting enough sleep, and you feel bad or tired the next day, drink extra water."
Dehydration can have a number of adverse effects on the body, such as dizziness, feeling drowsy and having dark-coloured, strong-smelling urine.
The most obvious way to stay hydrated is to drink plenty of fluids throughout the day and avoid or limit drinks such as caffeine, tea and alcohol, which can dehydrate the body.