Health encyclopaedia

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Prevention of Dehydration

You can avoid dehydration by drinking eight large glasses of water a day and increasing your intake of water if you are ill with sickness and/or diarrhoea.

When exercising, you should drink up to one litre of water per hour of exercise, on top of your normal daily amount. This should be increased if you are exercising in warm conditions, as you will dehydrate more quickly.

In hot weather, you will sweat more and lose fluid from your body. Make sure you are drinking enough water to replace lost fluids.

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