Not much evidence behind advice to drink plenty of fluids wh
Doctors often advise patients to 'drink plenty of fluids' and 'keep well hydrated' when unwell, but a new report calls for more research behind this advice.

Writing in the journal BMJ Case Reports, doctors explain the case of a 59-year-old woman who developed hyponatraemia -- a condition that occurs when the level of sodium is abnormally low -- from drinking too much water to help with a recurring urinary tract infection...