<unk>  is<unk>  through the<unk> . It often is caused by an obstruction to<unk>  through the nose, the innate<unk>  organ in the human body. Chronic<unk>  may be associated with illness. The term<unk> -breather" has developed a pejorative slang meaning.
Mouth breathing
Liquid breathing
Shallow breathing
Cough reflex
Voice change
Obligate nasal breathing
Alaryngeal speech
Pursed-lip breathing