Is it true that coffee is dehydrating, or is that an old myth we can ignore? Here's how much a cup of joe really hydrates you ...

I enjoyed drinking so much water—more than I thought I would. In practice, 13 cups wasn’t quite as daunting as it looks, and once I got into a bit of a habit of opting for water, I was in a good ...

Will drinking water an hour or two before coffee boost hydration and alertness? Experts explain.

“Drink more water” is the common answer when it comes to many, many health problems. Have stomach cramps? Drink more water. Suffering from a migraine? You must be dehydrated. Overall in a cranky mood?

cup of black coffee and water glass on tray - Smith Collection/gado/Getty Images We've all been told about a bajillion times that we need to drink more water. And we all know that you should really ...