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Premenstrual syndrome (PMS) can disrupt women’s work process, social activities and interpersonal communication and lead to a lower quality of life (QOL). This study aims to determine the effectiveness of happiness training based on Fordyce’s theory on QOL and the Positive and Negative Affect Schedule (PANAS) in women with PMS.

This randomized controlled trial was conducted on 100 women (intervention = 50, control = 50). The intervention group participated in eight 120-min sessions of training counseling based on Fordyce happiness training. The participants completed a sociodemographic questionnaire, the PANAS and the 36-Item Short Form Health Survey (SF-36). A general linear model was used to compare the mean scores of QOL and positive and negative affect after the intervention.

After the intervention, the mean scores of negative affect [MD = −6.12; 95% confidence interval (CI) = −12.10 to −1.49] and body pain (MD = −26.19; 95% CI = −38.63 to −13.72) were significantly lower in the intervention compared to the control group. Also, the mean scores of physical functioning (MD = 42.0; 95% CI = 16.37 to 67.64) and vitality (MD = 10.40; 95% CI = 4.86 to 15.39) were significantly higher in the intervention group compared to the controls.

Fordyce happiness training is recommended to be used in conjunction with other supportive and caregiving methods for women with PMS. Midwifes and nurses are the main source to give this training to women and can help them perform cognitive tasks, such as concentration, positive thinking and negative emotions.

This randomized controlled trial suggests Fordyce happiness training as a feasible and acceptable training program that can be beneficial in reducing negative affect in women with PMS.

Transition to parenthood (TTP) is a major life event that affects all aspects of one’s psychosocial function. Similar to their partners, men experience a lot of psychological changes during the TTP process. As there are a few studies on this subject, so the purpose of this study is to review previous studies on psychological and functional changes in men during TTP.

This is a review study that reports the findings from a review of previous studies on psychological and functional changes in men during TTP. This study searched from the electronic database between articles published in between 2005–20.

This study was carried out in five stages: framing research questions; searching databases with an effective strategy; selecting relevant studies; findings mining; summarizing and classifying findings; and providing results. After the literature review, relevant studies were categorized into three groups. The first, second and third groups included studies on prenatal, labor and delivery and postnatal TTP, respectively. Psychological and functional changes in men during TTP significantly affect child-father relationships, development of children and sexual relationship with a partner. Therefore, further attention should be given to this important process, along with changes, expectations, needs, etc.

This study reviews men’s functional changes along with their psychological changes during the parental transition. This study also reviews effective strategies and interventions for successful parental transition in men.

Because of the importance of having enough sleep in life and health, this study aims to determine the effect of vitamin D supplementation on sleep quality and pregnancy symptoms (primary outcomes) and side effects (secondary outcome).

In this triple-blind randomized controlled clinical trial, 88 pregnant women with gestational age of 8–10 weeks and serum vitamin D concentration less than 30 ng/ml were allocated into vitamin D (n = 44) and control (n = 44) groups by blocked randomization method. The vitamin D group received a 4,000 IU vitamin D pill, and the control group received a placebo pill daily for 18 weeks. Independent t-, Mann–Whitney U and ANCOVA tests were used to analyze the data.

The post-intervention mean (SD: standard deviation) of total sleep quality score in the vitamin D and placebo group were 1.94 (2.1) and 4.62 (1.71), respectively. According to the Mann–Whitney U test, this difference between the two groups was statistically significant (p < 0.001). The mean (SD) of pregnancy symptoms in the vitamin D and placebo groups was 23.95 (16.07) and 26.62 (13.84), respectively, and there was no significant difference between the two groups based on ANCOVA test (p = 0.56). Considerable side effects were not observed in any groups.

This study was conducted due to the contradictory results of the effect of vitamin D on sleep quality and the high prevalence of sleep disorders and pregnancy symptoms.