There’s something magical about summer—the golden evenings, the smell of sunscreen, the soundtrack of cicadas. But when the thermometer climbs into the triple digits, even the thought of exercise can feel like you’re signing up for a slow roast. I’ve been there, standing in front of the fan in workout gear, debating if a walk to the fridge counts as cardio.

Summer days bring all kinds of adventures, from long hikes to lazy afternoons by the pool. But with all that fun in the sun comes one major challenge—staying hydrated. It’s easy to underestimate just how quickly hot weather can take a toll on your body. One moment, you’re enjoying the day; the next, you’re struggling with fatigue, a pounding headache, or that sluggish, overheated feeling.