The cold, dry air during the winter can also dry out the mucus membranes in the sinuses which can make it easier for pathogens to enter the body. Again, doesn't make you sick directly but does interfere with your body's defense mechanisms.
The cold, dry air during the winter can also dry out the mucus membranes in the sinuses which can make it easier for pathogens to enter the body. Again, doesn't make you sick directly but does interfere with your body's defense mechanisms.