The National Academies of Sciences says men need about 3.7 liters (125 ounces) a day, and women about 2.7 liters (91 ounces). But that includes all fluids—coffee, tea, soup, and even that sneaky soda you’re hiding from your doctor.
Wait, coffee counts? Yes! Coffee is not the enemy. In fact, moderate caffeine doesn’t dehydrate you. So enjoy your morning brew without guilt.
But if you’re drinking eight cups of black espresso, you might vibrate into another dimension. Use common sense.
Signs You’re Doing It Wrong
How do you know if you’re dehydrated? Your mouth feels like sandpaper. Your head might ache. And you suddenly crave a salty snack (your body is screaming for balance).
On the flip side, drinking too much water is possible. It’s called hyponatremia, and it’s rare but real. You’d have to chug like a competitive eater to get there.
So relax. You’re not going to turn into a puddle unless you’re trying to.
Water Intake Calculator - How Much Water Should You Drink?
