
07/24/2025
“Whether you’re out in the summer heat or hitting the gym, staying hydrated is key to staying healthy and energized,” says Joseph Feldman, MD, FACEP, Medical Director of Mount Sinai Doctors–Urgent Care. “And hydrate with fluids with electrolytes to replace the electrolytes you lose in your sweat as well.”
Dehydration can sneak up on you, especially during physical activity. So why does matter? It helps regulate your body temperature, keeps your joints lubricated, supports muscle function and recovery, and even aids in digestion and nutrient transport.
“You should drink between 11.5 cups per day and 15.5 cups per day, depending on your size and activity level,” adds Dr. Feldman. So don’t wait until you’re thirsty—by then, dehydration has already started.
If you’re experiencing any heat-related issues, visit Mount Sinai Doctors-Urgent Care, conveniently located on the Upper West Side at 638 Columbus Avenue.
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