many northerners in the U.S. take winter breaks and go south to the sun. They go to places like Florida, Arizona,the Caribbean and Hawaii. They are choose these places for the sun and the warmth, and when they return home they feel relaxed and refreshed. but is it the warmth that make these people feel better or something else? Some experts believe that natural sunlight is more important to how we feel than the heat or the cold. Many of us think we are escaping the cold when we take winter breaks in the sun. Actually, we are escaping the short days and looking for more light and longer days.More light makes us feel happier. Less light make us feel sad oe even depressed.It's as simple as that.So,next time you feel the winter blues, head south for the light. Of course you can enjoy the warmth of the sun as well.