You are mostly water. That's not a metaphor — it's the operating condition of every system you run on, and it's why falling behind on fluids shows up in so many different ways at once. Here are the numbers I think about as a nurse. (They're widely cited averages; your mileage, like everyone's, varies a little.)
The numbers that run you
About 60% of your body is water. Your brain is about 73% water — which is why "foggy" is so often a fluids problem wearing a disguise. Blood plasma is roughly 90% water; circulation is, at its core, a delivery system that runs on water. On an average day you lose about 2.5 liters through breath, sweat, and the bathroom — whether you notice it or not. And it doesn't take much of a deficit to feel it: losing just 1–2% of your body water is enough to dull focus and energy.
The sneaky part — the genuinely sneaky part — is that thirst is a lagging indicator. By the time you feel thirsty, you're already behind. The fix for everyday life is boring and free: drink steadily, before you're thirsty.
Where a drip fits
Every Swan drip carries one full liter of saline — a real, measurable amount, delivered in about an hour, for the days when drinking hasn't caught up or can't. That's the number that matters to us. See what each drip includes on our IV Menu.
What this means on an ordinary Tuesday
You don't need an app or a gallon jug with times written on it. A glass of water when you wake up. A bottle you can see, not one in a bag. Another glass with lunch. That's most of the battle — replacing roughly what the day takes, steadily, instead of trying to win it all back at 9 p.m. The numbers above aren't trivia; they're the reason the boring routine works.
— Mercedes Denham, RN Book at swanhydration.com or call/text 412-312-4707.
