INTRODUCTION
Sexual dysfunction has been recognized as one of the important social and biological relationship in human life. This condition affects the sexual life of millions of men worldwide. The prevalence of male sexual dysfunction is increased as the age advanced (Wattanathorn et at., 2012; Moreira et al., 2006). Therefore, the sexual dysfunction is still increasing its prevalence and importance. Sexual dysfunction caused by various factors including stress. Despite the importance of sexual dysfunction, the therapeutic efficacy is still not in satisfaction level. The most well