I've always been told the hydration is extremely importanmt, obviously when doing sports / training but also in every day life... you always hear how at least 2 litres should be taken in a day and I've taken to always having a bottle on me or around me and try to sip throughout the day or whenever I can. Well now I'm hearing that's rubbish and excessive water intake can lead to water intoxication. The boffins say sport aside you should not be drinking lots of water and that it is dangerous to have too much... they also say that it is hard to say what is classed as excessive and so best to drink when thirsty. Apparently people have had fallen ill from intoxication from having too many pints of beer as well!! So is a there a rule of thumb or any guidelines? Do I stick to water during training and a recovery drink afterwards and maybe an additional litre throughout the day.