The real answer is boring and beautiful: it depends. The National Academies of Sciences recommends around 3.7 liters for men and 2.7 liters for women daily. But that includes everything—coffee, tea, soup, even that sneaky beer at happy hour.
Yes, coffee counts. That old myth about caffeine being a diuretic that dehydrates you? Mostly garbage. Unless you’re drinking a gallon of espresso, your body holds onto most of that liquid. So pour yourself a second cup without the guilt.
Your Personal Water Meter
Your body is actually a fairly decent hydration meter. If your pee is the color of pale lemonade, you’re golden. If it looks like amber beer from a dive bar, drink up. If it’s completely clear, you’re probably overdoing it—you’re just making expensive urine.
And here’s a joke for you: I once drank so much water I started floating during a Zoom meeting. That’s an exaggeration, but overhydration is real. It’s called hyponatremia, and it happens when you flush out too many salts from your blood. Athletes get it. You will not get it from sipping a Stanley cup at your desk, but don’t chug a gallon before a marathon.
Chart Shows How Much Water People Need To Drink According To Weight
