Background and Aim Fibromyalgia syndrome is a chronic disease that causes widespread musculoskeletal pain. It primarily affects women and negatively impacts many aspects of a person’s psychological and social life. This study aimed to compare the effectiveness of cognitive therapy based on mindfulness and compassion therapy on automatic negative thoughts, psychological symptoms, pain intensity, and quality of life in patients with fibromyalgia syndrome.
Methods & Materials This research is a quasi-experimental study with a pre-test-post-test design with two experimental and one control group. The statistical study population consisted of all individuals with fibromyalgia syndrome referred to Mehregan Pain Clinic in Mirdamad (District 3), Seyed Khandan Clinic (District 4), and Taleghani Hospital Pain Clinic (District 1) in Tehran City, Iran. Of them, 30 patients were randomly selected and divided into three groups of experimental 1, experimental 2, and control; each group will include 10 people. The instruments used in this study included the World Health Organization quality of life questionnaire (WHOQOL BREF), pain intensity questionnaire (PIS), psychological symptoms questionnaire (Anxiety, Stress and Depression [DASS]), and automatic negative thoughts (QNS).
Ethical Considerations This study was approved by the Research Ethics Committee of Arak Branch, Islamic Azad University (Code: IR.IAU.ARAK.REC.1400.005). 
Results The analysis of covariance showed the effectiveness of both cognitive therapies based on mindfulness and compassion therapy on four variables of pain intensity, psychological symptoms, automatic negative thoughts, and quality of life (P<0.05). Comparing the two intervention methods showed that both therapies had almost the same effect on pain intensity, psychological symptoms, and automatic negative thoughts (P<0.05) but the effectiveness of mindfulness intervention on the quality of life was significantly higher than compassion intervention (P<0.05). 
Conclusion The results indicate that cognitive therapy based on mindfulness and compassion therapy are suitable for people with fibromyalgia under appropriate treatment. 

Introduction: The purpose of this research was to investigate the effect of a period of resistance training and melatonin consumption on sex hormone levels, pain intensity, and sleep quality in girls with primary dysmenorrhea.
Methods: For this purpose, 60 girls with moderate primary dysmenorrhea disorder (score 4-7) were randomly placed in 4 groups: resistance training + melatonin, resistance training + placebo, melatonin supplement group, and control group.  Pain intensity, and sleep quality were assessed by the McGill questionnaire, and the Pittsburgh questionnaire respectively.  10 mg of melatonin was taken daily in two 5 mg capsules and the placebo group received the same amount of carbohydrates in the same capsule.  Weight training, three days a week for eight weeks. This circuit exercise training was in 9 stations and with a maximum of 10-12 repetitions at 30-65% of a maximum repetition in each station.  Each set and repetition was separated by 2-3 minutes and 90 seconds of rest, respectively. The blood sample was taken in the morning, fasting and 5 cc from the brachial vein from the left hand while sitting in the sitting position, and was taken by special kits. Data were analyzed by ANOVA with repeated measures and Bonferroni post hoc test at level P<0.05. All experimental procedures were approved by the Ethics committee of the Sport Sciences Research Institute of Iran (Code: ID IR.IAU.NEYSHABUR.REC.1401.008), Clinical Trial (Code: ID IRCT20230703058653N1) from the Iran Clinical Registration Center and were conducted under the Declaration of Helsinki.
Results: A significant increase in Estrogen (P<0.001) and progesterone (P<0.001) levels in the exercise + supplement group compared to all groups, and in the exercise + placebo group and the supplement group compared to the placebo group was reported. Also, The decrease in Pain intensity (P<0.001) and sleep quality (A decrease in the sleep score means an increase in the sleep quality in the output of the questionnaire) (P<0.001) in the supplement group compared to all groups and in the exercise + placebo group (P<0.05) and the exercise + supplement group compared to the placebo group showed a significant difference.
Conclusions: It seems that synergy of exercise and melatonin has affected the sex hormones level. Also, the melatonin probably helped to improve the sleep quality and pain intensity of the subjects through the adjustment of sex hormones following dysmenorrhea. Also, exercise probably has an effect on the pain intensity and sleep quality through the release of beta-endorphins and the effects of exercise on the menstrual cycle, although the finding are ambiguous.