Water fights

So now researchers at the University of Pennsylvania have reviewed the literature on claims that drinking 8 glasses of water a day makes you healthier. Their conclusion: not really (except under conditions of excessive heat, exercise, or illness). This is old news–you get plenty of water from whatever you are drinking and what’s naturally in food–but it’s bad news for health claims made by bottled water manufacturers. They, as you might expect, do not have nice things to say about this research.