
How Much Water Do You Actually Need to Drink?
How much water should you drink a day? Where the "8 glasses" rule came from, what the research actually says, and how to tell if you're drinking enough.
Understand your body and mind with clear, plain-English health explainers covering nutrition, sleep, fitness, mental health and the conditions people search for most. We translate the science and cut the jargon so you can feel informed and ask better questions. Every guide is carefully researched and human-reviewed, with reputable sources — but it’s for general information only, and never a substitute for advice from a qualified healthcare professional.

How much water should you drink a day? Where the "8 glasses" rule came from, what the research actually says, and how to tell if you're drinking enough.

Why do we need sleep? A clear, plain-English guide to sleep cycles, REM, how much sleep you actually need, and what happens to your body when you don't get enough.