Introduction: Sleep quality is one of the effective variables in other psychological characteristics, especially in multiple sclerosis patients. As a result, the present study was conducted with the aim of determine the role of interpersonal problems and illness perception in predicting sleep quality with mediating distress tolerance in multiple sclerosis patients.
Methods: This was a cross-sectional correlational study. The research population was all patients who were members of the Multiple Sclerosis Association of Urmia township in the first quarter of 2021 year. The sample size was estimated 315 people who were selected by available sampling method. The research data were collected by Barkham et all short version of interpersonal problems inventory (1996), Broadbent et all brief illness perception questionnaire (2006), Buysse et all Pittsburgh sleep quality index (1989) and Simons & Gaher distress tolerance scale (2005) and were analyzed by Pearson correlation coefficients and path analysis methods in SPSS-19 and PLS-3 software. This research with the IR.IAU.URMIA.REC.1400.022 ethics code is approved by the ethics committee in biomedical research of Islamic Azad University of Urmia branch.
Results: The results showed that the increase of interpersonal problems and negative perception of illness led to decrease the distress tolerance and loss of sleep quality and an increase of distress tolerance improved sleep quality. In addition, the decrease of interpersonal problems and negative perception of illness with mediating distress tolerance led to improved sleep quality (P<0.01).
Conclusions: According to the results, to improve the sleep quality of multiple sclerosis patients can be increased the rate of their interpersonal problems and illness perception and decreased their distress tolerance.

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.

Introduction: Generalized anxiety disorder can be described as a debilitating disorder characterized by negative evaluation by others, internal shame, negative self-concept, as well as high levels of anxiety and avoidance in specific social and functional situations. The purpose of this study was to investigate the effective of hypnotherapy in promotion subjective well-being and sleep quality in people with generalized anxiety disorder.
Methods: This was a quasi-experimental study with pretest-posttest and a control group design and conducted on 40 persons who had generalized anxiety disorder in Rasht, Iran in 2023 and were randomly divided into two experimental and control groups (20 persons in each group). The hypnotherapy was conducted during 6 sessions in the experimental group, while the control group did not receive any treatment. The data were collected through the subjective well-being and sleep quality Inventory. Multivariate analysis of covariance was used to analyze the data. This study was approved by the Research Ethics Committee of Payame Noor University (Code: IR.PNU.REC.1402.070).
Results: The results indicated that hypnotherapy was effective on subjective well-being (F= 33.38, P=0.001) and sleep quality (F= 5.10, P=0.03) in people with generalized anxiety disorder; this method also increased their subjective well-being and sleep quality.
Conclusions: The based on the results of the present study, hypnotherapy is effective in promotion subjective well-being and sleep quality in people with generalized anxiety disorder. It suggests that these method are used along with other psychological and pharmaceutical therapies for people with generalized anxiety disorder as a clinical intervention.