Social Anxiety Disorder (SAD) refers to extraordinarily intensive fear and anxiety about one or more social situations, which cause clinically significant distress and lead individuals to persistently avoid from essential social interactions such as meeting unfamiliar people, eating among people, performing in front of people (DSM-5, 2013). SAD’s lifetime prevalence is 12.1% and twelve-month prevalence is 6.8%, which is the third most common mental health disorders in the US (http://www.nimh.nih.gov). Along side of its prevalence, its negative impact on individual’s interpersonal and intrapersonal life is huge. Individuals with SAD are at substantial risk of impairments in social and professional functioning such as, loosing status, isolation, and social rejection (Cain, Pincus and Holtforth, 2010 art7). According to Wong, Gordon, Heimberg (2014), in comparison with other anxiety…