Breathing is a necessary for human. It does so much effect on us in physiological and psychological way, we breath in many ways one is normal silent breath and other is breathing exercise. In our daily life, breathing exercise also of two types fast pace and slow pace breathing, in this review article. I had focused on the psychological effect and some physiological effect by slow pace breathing, how slow breathing can help us to overcome little psychological problems in our daily life and somewhat it also helps to prevent major psychological and physiological diseases. Psycological Effect Of Slow Breathing From the review of the articles done by me I would like to conclude with my review that slow breathing exercise is a best way to avoid the psychological disorder we can face today due to the stress and anxiety occurred by work, relation, and emotional disturbance and in some studies, it showed that it can be used as a primary treatment for psychological as well physiological disturbances.