<unk>  increases positive pressure generated in the conducting branches of the lungs. This can hold open bronchioles in patients with high lung compliance, such as those with emphysema.<unk>  also accesses the parasympathetic nervous system, which reduces stress during episodes of shortness of breath.
Pursed-lip breathing
Obligate nasal breathing
Kussmaul breathing
Mouth breathing
Liquid breathing
Expiratory apnea
Shallow breathing
Periodic breathing