Health & Wellness
The '8 Glasses a Day' Rule Has No Real Science Behind It — Here's the Actual Story
You've heard it your whole life: drink eight glasses of water a day. But that number didn't come from a clinical trial or a doctor's recommendation — and modern nutrition science says it was never a one-size-fits-all rule to begin with. Here's where it actually came from, and what staying hydrated really looks like.