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Eight Glasses of Water a Day: The Health Rule Nobody Can Actually Trace

Eight Glasses of Water a Day: The Health Rule Nobody Can Actually Trace

The '8x8 rule' — drink eight 8-ounce glasses of water every day — is one of those health guidelines Americans treat as settled fact. But when researchers went looking for the science behind it, they found almost nothing. The story of how a misread government document quietly became a daily health ritual is stranger than you'd expect.