Eight-by-Eight Rule from How Much Water Should You Be Drinking? (Slideshow)

How Much Water Should You Be Drinking? (Slideshow)

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Eight-by-Eight Rule

You’ve probably heard that drinking eight 8-ounce glasses of water a day is ideal. But actually, this is more of a recommendation than a rule to live by, as all of our bodies have different dietary needs. Still, it’s good to keep this number in mind as a general guideline.