Hypothesis no. 1: Cognitive-behavioral therapy has an impact on reducing psychological symptoms of PMS Anxiety is one of the most widespread psychological symptoms of PMS and results obtained from this study demonstrated that cognitive-behavioral therapy reduces premenstrual anxiety. Findings of this research are in agreement with study done by Picone and Kirkby(1990) in which the relationship between anxiety and PMS was examined. Their study indicated that PMS symptoms have a significant correlation with anxiety. Kirkby (1994) put forward an argument to survey the effect of sport on PMS and drew the conclusion that doing exercises does not decline the symptoms and just relieves it‟s anxiety. Regarding these findings, doing exercises related to muscle relaxation were emphasized to decrease women‟s anxiety as a result of PMS. The present research showed that avoiding worrying thoughts including anxious ones, training creative thoughts, believing in herself as a person with both abilities and shortcomings, refraining from hiding defects, reducing expectancies from herself and the others, planning and organizing things to improve person‟s purposefulness and clear up confusion could relieve anxiety from PMS.d