Tim Harford and the More or Less team try to make sense of the statistics which surround us. From BBC Radio 4
http://www.bbc.co.uk/programmes/p02nrss1
WS More or Less: Should we really be drinking eight glasses of water a day?
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)