Your heating system may not actively dry out the air in your home the way that an air conditioner can, but dry air is still a very real problem during the winter months. While the air in the summer tends to be humid, and dehumidified somewhat in the cooling process, the air in the winter starts out dry.
That means that you may be heating already dry air and redistributing it throughout your home again and again. That can have a seriously negative effect on your indoor air quality. Fortunately, it is a problem that you can resolve with the use of a professionally installed whole-house humidifier in Norfolk, VA.