Alleviate Anxiety

Regular practice of slow abdominal breathing will increase your lung capacity and help you to breathe more deeply.  It will also become a very useful tool that you can use whenever you feel stressed, anxious or something upsetting occurs in your life.  Slow deep breathing is most beneficial when practiced regularly or when it's implemented as soon s you detect any increase in your tension or anxiety levels. 
Slow breathing can relieve anxiety and prevent you from having a panic attack, if you do it as soon as you notice yourself over breathing or becoming anxious. 
Socially anxious people are advised to do slow breathing before tackling a feared social situation or at any time they feel anxious.