Everywhere we look, be it in a magazine, newspaper or on the shelves of the supermarket, water has become big news in the health and beauty industry.
But just how much do we need and why do we need so much of it? Do some of us need more than others? And what if you can't handle the recommended 1.5 litres – 2 litres (3-4 pints) a day?
How much water we take in is controlled, primarily, by our thirst mechanism. How much we lose will depend upon other factors such as weather, body temperature, how much exercise we take, how much we sweat and how many times a day we empty our bladders. Therefore the amount of fluid lost needs to be replaced.
Water is the most important factor in our diet. Without it, quite simply we die. Our bodies are made up of 60% water, so it's easy to see why we must keep ourselves topped up with nature's liquid life force.
The good news is that there are three great ways of doing this. We get it in the food we eat, as a by-product of metabolism and by drinking it.
How much do we really need?
The human body needs 2.5 litres of water a day. That's 10.5 glasses of water daily! But luckily we need only drink 6-8 glasses a day as we get some of our water from food and 25% is supplied by metabolism.