The National Academies of Sciences, Engineering, and Medicine have the actual numbers—but let’s make them fun. Men need about 3.7 liters (roughly 15.5 cups) of total fluid daily. Women need about 2.7 liters (roughly 11.5 cups). But again, total fluid includes your coffee, your tea, that occasional soda, and even that bowl of watermelon you polish off on a hot day.
How Much Water to Drink in a Day - Make Healthy Easy - Jenna Braddock RD
“But caffeine dehydrates you!” I hear you wail. False. That’s an old wives’ tale that won’t die, like the idea that cracking your knuckles causes arthritis. Caffeine is a mild diuretic, but unless you’re drinking a pot of espresso with no food, the water in your latte more than balances out what you pee out. Your morning joe counts, folks.
The Real Signs You’re Running Low
Forget counting ounces. Your body gives better clues than Law & Order. Is your pee the color of pale lemonade? You’re golden. Is it the color of apple juice? Drink up. Is it the color of iced tea? You may be one dry Kleenex away from a headache. Also, try a pinch test: pinch the skin on the back of your hand. If it snaps back instantly, you’re hydrated like a billionaire’s lawn. If it slowly sinks, you’re a raisin in training.
Another hilarious sign: bad breath. Your saliva is your mouth’s janitor. When you’re dehydrated, saliva production drops, and bacteria throw a party that smells like a moldy sock. Drink water, save your social life.
Hydration 101: How Much Water Should You Drink Each Day?
