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Introduction: Currently the rate of Internet exploitations is increasing among college students and has become an important part of their life. Beside the benefits and advantages of Internet usage, abuse, extreme exploitation, and over dependence on the Internet can lead to complications. This study aimed to investigate the relationship between Internet addiction and feelings of happiness among Dezful Medical Sciences University students.

Methods: This research is a cross-sectional study, which was performed on 276 qualified Dezful Medical Sciences University students in 2014 with the method of available census. The tools utilized for data collection consisted of demographic questionnaire, Young Internet Addiction Standard criterion, and Happiness Oxford Standard criterion. The data were analyzed via the SPSS software.

Results: In this study, 1.8% of female students was addicted to the Internet, which was 0.9% more compared to male students (P = 0.033). There were significant statistical correlations between the utilization of various websites and Internet addiction (P = 0.044). A significant statistical correlation was observed between daily usage and Internet addiction (P = 0.0001). The correlation coefficient between Internet addiction and student vitality, freshness, and joy was -0.085 (P = 0.185).

Conclusions: The results showed that daily use of the Internet by students, who have Internet addiction cause a decrease in feelings of happiness among students. It is recommended for educational programs to motivate students towards correct methods of Internet use.

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Introduction: Multiple sclerosis (MS) is one of the most common diseases of central nervous system (CNS), which causes many psychological problems. Therefore, the two concepts of prosperity and resiliency in people with MS are of great importance. Personality significantly deals with happiness and perseverance as most psychological responses, and the assessment of individuals about different situations depends on personality. The current study aimed at comparing the Myers-Briggs personality dimensions, happiness, and resilience in patients with MS.
Methods: The current scientific-comparative study was conducted on a statistical population including all patients enrolled in the MS Society of Ghowchan City, Khorasan Province, Iran from 2016 to 2017. The sample size was 66 subjects calculated using Morgan table. The subjects were selected by simple random sampling method. Data were collected using the Myers-Briggs personality type, happiness, and the Conner Davidson resiliency questionnaires. The results were analyzed by one-way analysis of variance (ANOVA) in a step-by-step manner.
Results: One-way ANONA showed a significant difference between sensing-intuitive and judging-perceiver dimensions in terms of feeling of happiness (P < 0.05). But, the difference between introverted-extravert and thinking-feeling dimensions in terms of feeling of happiness was not statistically significant (P > 0.05). The difference between thinking-feeling dimensions in terms of resilience was statistically significant (P < 0.05), although the difference between the dimensions introverted-extravert, sensing-Intuitive, and judging-perceiver was not statistically significant in terms of resilience (P > 0.05).
Conclusions: According to the findings of the current research, there is a significant relationship between some aspects of personality and the level of happiness and resilience in patients with MS. Therefore, it is recommended to develop educational programs for such patients in order to improve their resilience and happiness based on Myers-Briggs personality dimensions questionnaire to recognize patients’ personality traits and preferences.

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Introduction: The several studies have shown the influence of physical activity in improving elderly people’s mental and physical functioning
The aim of this study was to investigate the efficacy of Tai Chi Chuan exercises on happiness in elderly men
Methods: The present study was a randomized clinical trial that was carried out among 132 elderly people membered in Pakdasht retirement center, Tehran in 2017. Subjects were selected using purposeful sampling method. Subjects were chosen through purposive sampling and assigned randomly to experimental (n=66) and control groups (n=66). Tai Chi Chuan exercises was performed to the experimental group for 8 weeks (3 times a week). Data were collected using the oxford happiness’s questionnaire before and after the intervention. Data were analyzed using descriptive statistics, T-test, Chi-square tests, and Fisher's Exact Test in SPSS21.
Results: The mean of anxiety in the experimental group was 41.31 ± 41.31 before the intervention, whereas it was 55.89 ± 7.21 after the intervention. The mean scores of stress among the participants showed significant difference pre and post-intervention in the experimental group (P<0.05). However, this difference was not significant in the control group (P=0.86).
Conclusion:The findings indicated that Tai Chi exercise increased happiness in the elderly men. Therefore, it is suggested that Tai Chi as one form of physical activities should be used more commonly for promoting happiness and mental health profile of the elders.

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Introduction: Elderly affects their lifestyles and life satisfaction because of deprivation of social activity. Therefore, the aim of this study was to Investigate Life satisfaction and correlates in older adults attending West Health Center of Tehran.
Methods: The present study is a cross-sectional, descriptive correlation study. The research sample consisted of 200 elderly people attending West Health Center of Tehran through an accessible sampling method after obtaining written informed consent. The data collection tools consisting of a short form of AMT (Abbreviated Mental test) for cognitive test, a demographic Form, and Diener questionnaire (SWLS) for assessing life satisfaction. Data were analyzed by SPSS software version 20 using descriptive and inferential statistics including paired t-test and one way ANOVA.
Results: The results showed that the mean age of the elderly was 64.53 (SD = 3.95). So that 51% were women and 49% were male. About 39% of the elderly had a moderate life satisfaction. The results of the relationship between life satisfaction with employment, health status, hypertension, diabetes, arthritis, respiratory diseases and other diseases were statistically significant (P <0.05).
Conclusions: The results of the study showed that a significant percentage of the elderly were satisfied with their life, and it seems that in having a life satisfaction, some personal characteristics such as being old and married and having a job status and desirable health are considered as an important component. It should be considered in nursing care of the elderly. Therefore, the results of this research can be used to apply positive aspects of "life satisfaction" in improving the health of the elderly referring to the health center and realizing the concept of "healthy and active aging".
 

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Introduction:Nurses are exposed to work-family conflict due to various professional and family responsibilities, which will have many negative consequences on their lives. Examining the related factors for proper planning is one of the priorities of nursing managers. The aim of this study was to determine investigating the relationship between happiness and self-efficacy with work-family conflict in nurses of Birjand teaching hospitals.
Methods: The present study was a cross-sectional descriptive- correlational study in which the studypopulation consisted of nurses working in Birjand teaching hospitals in the second half of 2020. 160 qualified nurses were included in the study through available sampling. To collect data, questionnaires include Nurses' demographic information;Oxford Happiness, Scherer's general self-efficacy and Carlson family-work conflict were used to collect data. Data were analyzed using SPSS software version 19 using descriptive and inferential statistical tests.
Results: In total, 78.1% of the subjects were female, 89.4% were married, and 88.8% were undergraduates with a mean age of 35.69± 5.55 years. The mean of total happiness (37.51 8 8.13) was moderate to low, self-efficacy (46.11 4 4.59) was moderate and work-family conflict (43.72 52 5.52) was moderate. The results showed that happiness and self-efficacy had a significant and inverse relationship with work-family conflict in nurses (p <0.001, r = 0.39) and (r = 0.26, p <0.001). .
Conclusion:Findings of the present study showed that nurses 'self-efficacy and happiness are effective on the rate of work-family conflict and it can be said that with increasing nurses' self-efficacy and happiness, their work-family conflict rate decreases. Therefore, it is suggested that by promoting nurses' self-efficacy and happiness, they reduce the effects of work-family conflict.Introduction:Nurses are exposed to work-family conflict due to various professional and family responsibilities, which will have many negative consequences on their lives. Examining the related factors for proper planning is one of the priorities of nursing managers. The aim of this study was to determine investigating the relationship between happiness and self-efficacy with work-family conflict in nurses of Birjand teaching hospitals.
Methods: The present study was a cross-sectional descriptive- correlational study in which the studypopulation consisted of nurses working in Birjand teaching hospitals in the second half of 2020. 160 qualified nurses were included in the study through available sampling. To collect data, questionnaires include Nurses' demographic information;Oxford Happiness, Scherer's general self-efficacy and Carlson family-work conflict were used to collect data. Data were analyzed using SPSS software version 19 using descriptive and inferential statistical tests.
Results: In total, 78.1% of the subjects were female, 89.4% were married, and 88.8% were undergraduates with a mean age of 35.69± 5.55 years. The mean of total happiness (37.51 8 8.13) was moderate to low, self-efficacy (46.11 4 4.59) was moderate and work-family conflict (43.72 52 5.52) was moderate. The results showed that happiness and self-efficacy had a significant and inverse relationship with work-family conflict in nurses (p <0.001, r = 0.39) and (r = 0.26, p <0.001). .
Conclusion:Findings of the present study showed that nurses 'self-efficacy and happiness are effective on the rate of work-family conflict and it can be said that with increasing nurses' self-efficacy and happiness, their work-family conflict rate decreases. Therefore, it is suggested that by promoting nurses' self-efficacy and happiness, they reduce the effects of work-family conflict.Introduction:Nurses are exposed to work-family conflict due to various professional and family responsibilities, which will have many negative consequences on their lives. Examining the related factors for proper planning is one of the priorities of nursing managers. The aim of this study was to determine investigating the relationship between happiness and self-efficacy with work-family conflict in nurses of Birjand teaching hospitals.
Methods: The present study was a cross-sectional descriptive- correlational study in which the studypopulation consisted of nurses working in Birjand teaching hospitals in the second half of 2020. 160 qualified nurses were included in the study through available sampling. To collect data, questionnaires include Nurses' demographic information;Oxford Happiness, Scherer's general self-efficacy and Carlson family-work conflict were used to collect data. Data were analyzed using SPSS software version 19 using descriptive and inferential statistical tests.
Results: In total, 78.1% of the subjects were female, 89.4% were married, and 88.8% were undergraduates with a mean age of 35.69± 5.55 years. The mean of total happiness (37.51 8 8.13) was moderate to low, self-efficacy (46.11 4 4.59) was moderate and work-family conflict (43.72 52 5.52) was moderate. The results showed that happiness and self-efficacy had a significant and inverse relationship with work-family conflict in nurses (p <0.001, r = 0.39) and (r = 0.26, p <0.001). .
Conclusion:Findings of the present study showed that nurses 'self-efficacy and happiness are effective on the rate of work-family conflict and it can be said that with increasing nurses' self-efficacy and happiness, their work-family conflict rate decreases. Therefore, it is suggested that by promoting nurses' self-efficacy and happiness, they reduce the effects of work-family conflict.

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Introduction: Thalassemia is a chronic disease that poses serious clinical and psychological challenges.   It may affect the mental state of parents of children with thalassemia. Regarding that Mothers of children with thalassemia major have a lot of care responsibility, this research was done to study the effectiveness of acceptance & commitment-based method of therapy on the happiness and psychological well-being of Mothers of children with thalassemia major
Methods: The present study is a semi-experimental type of with a control and follow-up group. The statistical population of the study was the mothers of children with thalassemia major who referred to the center of special diseases in Kerman province in 1400. Samples were selected voluntarily using available sampling method that consisted of 30 people in each group. After that, treatment based on acceptance and commitment was performed on the experimental group. The control group receive routine care.  After the training, the post-test was taken separately from the two groups one day apart, and a month later, the control and intervention groups were evaluated again. The data collection tools were Ruff Psychological Wellbeing and Oxford Happiness.
 Results: psychological well-being of mothers of children with thalassemia major in two groups were not significantly different before the intervention. After the intervention, significant difference was seen in the intervention group. (p<0.05The effect of acceptance and commitment therapy on the happiness of mothers of children with thalassemia major", followed (p<0.05) and this effect was maintained for one month after the intervention.
 Conclusion: The results showed that acceptance and commitment therapy is effective on happiness and psychological well-being of mothers of children with thalassemia major.
 

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Background There are several researches which indicated the effect of various variables on the severity of menopause symptoms in women. However, the role of self-knowledge, life satisfaction, psychological readiness, taste, aesthetic sense, self-efficacy and hope in women as an integrated model has been neglected. Menopause is a new period of women's life, in order to adapt and understand the changes resulting from it, the level of awareness and knowledge of women, family members and of course society should be increased. Considering the effects of variable dimensions of happiness on the severity of menopause symptoms, it seems that a more detailed examination of the psychological aspects of menopause is useful and important. This study was conducted with the aim of determining happiness and severity of menopausal symptoms in menopausal women referring to rural health centers in Saveh city.
Method: his descriptive By receiving the code of ethics on IR.IUMS.REC.1402.112 on 02/24/1402 as- analitical cross-sectional study was conducted in 1402, 440 postmenopausal women referred to rural health centers and health homes in Saveh city were selected by quota method with proportional allocation. Demographic information form, Oxford Happiness Questionnaire and Heinemann et al. Menopause Symptoms Severity Questionnaire were completed by women participating in the research. In this study, half an hour of time was allocated for each participant, and full oral explanations were given on how to fill in the questionnaires. The participants filled out their questionnaires after receiving them, at home or in a private room, during fifty days, every ten days, and each time for 30 minutes, time was set to fill these questionnaires. After the given time, the questionnaires were collected. Data analysis was done using descriptive statistical methods, Pearson correlation tests and multivariate regression by spss24 software..
Results: The results showed that all articles have a positive and significant correlation with the severity of menopause symptoms. The research findings show that there was a negative and significant correlation between "happiness" and "menopause symptom severity" at the 0.01 level. (self-concept, p<0.001 and r=-0.338), (satisfaction with life, p<0.001 and r=-0.3), (mental readiness, p<0.001 and r=-0.286), (being in good taste, p<0.001 and r=-0.217), (aesthetic, p<0.001 and r=-0.296), (self-efficacy, p<0.001 and
 r=-0.295), (Hopefully, p<0.001 and r=-0.204). Therefore, the hypothesis was zero and with 99% confidence, there was a negative and significant relationship between self-concept, life satisfaction, psychological readiness, enjoyment, aesthetic feeling, self-efficacy, and hope with the severity of menopausal symptoms in menopausal women. That is, as the severity of menopause symptoms increases, happiness also decreases..
Conclusion: It seems that happiness and its dimensions can play an effective role as a functional variable in the severity of menopause symptoms in women and their quality of life. As it turned out, happiness dimensions had a significant correlation with the severity of menopause symptoms. Considering the lack of sufficient studies in this field, in this research, the dimensions of happiness were investigated and its relationship with the severity of menopause symptoms was used. Therefore, the results of this study can be used in training to increase the level of happiness in menopausal women in order to effectively reduce the severity of menopausal symptoms and improve the lifestyle of these women in research environments.

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Background : Insomnia is very common among young people and has harmful physical and psychological consequences. Studies show that insomnia hinders happiness and increases anxiety and stress. However, this study was not conducted among nursing students, who are prone to sleep problems. Therefore, this study examined the relationship between insomnia, happiness, anxiety and stress among a group of nursing students living in northwest Iran.
Methods: In this cross-sectional study, 636 nursing students completed an online questionnaire that included demographic information and measures of insomnia, happiness, anxiety, and perceived stress.
Results: Happiness was inversely related to anxiety, perceived stress and insomnia. Anxiety was related to stress and insomnia, while insomnia and stress also had a strong linear relationship. The relationship between the main study variables and demographic variables was as follows: Happiness had a significant relationship with academic semester, anxiety with overall academic grade point average and employment status, stress with academic semester and overall academic grade point average, and finally insomnia with academic semester, overall academic grade point average and employment status
Conclusion: Mental health problems are common among nursing students. On the other hand, the variables examined in this study, including insomnia, anxiety and stress, have a detrimental effect on happiness, which is a key dimension of mental health. Therefore, self-care practices and provision of mental health support services for nursing students should be promoted.