How many times have you been grateful to be able to breathe through your nose after having an allergy or catching a cold? Breathing through the mouth, is horrible for most of us, but for a few people it is a part of their everyday life. Well, this is the case with my little brother. Affected by several lung problems, his nasal airways are always blocked, leaving him, with no choice but to breathe through his mouth and not only at night, but during the day too. For sure, we know it's uncomfortable, but what are the other consequences related to this case? For a child, it could lead to crooked…