It’s easy to see how perspiring in hot weather can increase your body’s need for fluids, but staying hydrated can be an issue during the winter, too. Your body must work harder to keep warm, especially during exercise, and it has to humidify dry air as you breathe — both of which cause liquid loss. Quench your body’s thirst with these tips when it’s cold:

• Stay aware. Walking in 90-degree weather will leave you feeling parched. But cooler temps can scale back your thirst function. Drink water throughout the day.

• Wet your workouts. A good rule of thumb, according to the American College of Sports Medicine, is to drink about 20 ounces of water within the four hours before exercise, another 3 to 8 ounces for every 20 minutes you’re active, then 20 to 24 ounces afterward.

• Monitor signs. Apart from thirst, your body offers other indicators that it’s time for some H2O. First, dark-yellow urine suggests you’re low on water. As you become more dehydrated, dry mouth, headaches, dizziness, and muscles weakness are also cues.

• Choose water. For most people who exercise under ordinary circumstances, water is best for hydration. Sports and energy drinks can add extra calories, sweeteners, and caffeine that most of us don’t need.

Make an effort to stay hydrated with water throughout all the seasons, even winter.