We all need around two litres of fluid a day to keep our bodies properly hydrated. Water is the medium in which most of body processes take place, and makes up about two thirds of body weight. We lose it via breath, sweat and urine.
The recommended daily two litres of fluid should come from water, plain or flavoured. We also get approximately half a litre from food eaten each day, about a quarter of daily needs, mostly from fruit and vegetables.
Of course, alternatives to water do tend to have more calories, so it makes sense to get at least some of our daily fluid needs from water. Also, some studies have indicated that drinking plenty of water is beneficial to the immune system; good for the skin; alleviates constipation and can reduce the risk of kidney stones.
Dehydration can make you feel tired and lethargic, and will decrease your capacity for exercise. Extra fluid is needed in hot weather and when you exercise. For each hour of exercise you should drink an extra litre of fluid. If you have an illness that is causing sickness, diarrhoea or sweating, you will need to up your fluid intake to make up for the extra loss.
Making sure you are properly hydrated is an important part of general wellbeing - both feeling and looking good - drink up!
---- shared by a friend through mail
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