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Tim Harford explains the numbers and statistics in the news and in life

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More or Less: Should we really be drinking eight glasses of water a day?

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Should we really be drinking eight glasses of water a day?

06/01/2017 GMT

BBC World Service - More or Less, Should we really be drinking eight glasses of water a day?

How much water do we need and how much is too much?

How much water do we need to drink each day and can too much kill you?

How much water should you be drinking? There’s some age-old advice that suggests you should be drinking eight ounces (230 ml) eight times a day. Some people even advise you should be drinking this on top of what you normally drink. There is lots of advice out there but how do you know when you’ve had enough or if you’re drinking too much. With help from Professor Stanley Goldfarb from the University of Pennsylvania, Wesley Stephenson finds out.

(Image: Hand holding a glass of water. Credit: Charlotte Ball/PA Wire)

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