Why do you need water?
Your body is nearly two-thirds water and so it is really important that you consume enough fluid to stay hydrated and healthy. If
you don't get enough fluid you may feel tired, get headaches and not perform at your best. `Fluid' includes not only water from the tap or in a bottle, but also other drinks that give you water such as tea, coffee, milk, fruit juice and soft drink. You also get water from the food you eat — on average food provides about 20% of your total fluid intake.
How much do you need?
The amount of fluid you need depends on many things including the weather, how much physical activity you do and your age. You can get water from nearly all fluid that you drink, apart from stronger alcoholic drinks such as wine and spirits.
If you're thirsty — have a drink. If your kidneys are healthy, your body will tell you when you need hydration.