Water Continued...

You’ll Be More Comfortable...

Why: It doesn't matter if the water you sip is hot or ice-cold. The act of drinking it will keep you warmer on a cold day -- and cool you off on a hot one.  Your internal thermostat works better when you're well hydrated, water helps regulate body temperature.

The body's temperature-regulating system, governed by the hypothalamus in the brain, is constantly picking up information that allows it to make adjustments to maintain a fairly steady core temperature. Hot sun? You'll sweat to cool down. Hatless in snow? The hypothalamus will know you're losing heat through your head and work to produce extra energy, such as shivering.

But these mechanisms work less well if you're dehydrated – and dehydration is a common risk for people of all ages, in winter as well as summer. In cold weather, for example, you lose water vapor through your breath. And many people tend to drink less water in cold weather because they don't think they need it as much as on hot, sunny days.

Water-drinking tip: Start by swapping out one soda, cup of coffee, or high-calorie hot chocolate a day with an equal amount of water. Carry a bottle of water with you all day long as a visual reminder to pause and sip. Sip more when you're physically active, whether in water, snow, or any weather condition.