Here’s the sneaky part: your brain’s “drink me” alarm gets frostbite in winter. Cold air dulls your thirst sensation, so you feel less parched than you actually are. Meanwhile, your body is sweating under all those layers like a nervous yoga instructor in a sauna.
Combine that with the fact that cold temperatures actually increase urine production—a phenomenon doctors call “cold diuresis.” That’s just fancy medicine-speak for “your kidneys go into overdrive and you pee like a racehorse.” Every time you unzip in a port-a-potty at -10°F, that’s your hydration leaking away.
Pre-Hydrate Like Your Lift Ticket Depends On It
The #1 rule is to start before you hit the slopes or trail. Don’t chug a gallon while putting on your boots—you’ll just slosh around like a fish tank on skis. Instead, sip 16-20 ounces of water about two hours before you go out. This gives your plumbing time to process it.
4 Tips for Staying Hydrated while Skiing, Snowboarding and more
Add a pinch of salt or an electrolyte tablet to that water. Why? Because electrolytes are the bouncers of your blood cells—they keep the party flowing properly. Otherwise, you’re just drinking expensive, cold diarrhea. (Surprising fact: your body absorbs water faster with a little sodium, and yes, that means you’ll cramp less.)
