1. Waterman AS. Two conceptions of happiness: Contrasts of personal expressiveness (eudaimonia) and hedonic enjoyment. Journal of Personality and Social Psychology. 1993;64(4):678–691. doi: 10.1037/0022-3514.64.4.678. ## 2. Kraut R. Two conceptions of happiness. Philosophical Review. 1979;88(2):167–197. doi: 10.2307/2184505. ## 3. Steptoe A. Happiness and health. Annu Rev Public Health. 2019;40:339–359. doi: 10.1146/annurev-publhealth-040218-044150. PubMed PMID: 30601719. ## 4. Abdel-Khalek AM. Religiosity, health and happiness: Significant relations in adolescents from Qatar. Int J Soc Psychiatry. 2014;60(7):656–61. doi: 10.1177/0020764013511792. PubMed PMID: 24327187. ## 5. Fararouei M, Brown IJ, Toori MA, Haghighi RE, Jafari J. Happiness and health behaviour in Iranian adolescent girls. J. Adolesc. 2013;36(6):1187–92. doi: 10.1016/j.adolescence.2013.09.006. PubMed PMID: 24215965. ## 6. Taheri Z. Studying the Effect of Classroom Interior Design on the Happiness and Mental Health of the Female Adolescent Students. J Biochem Tech. 2019;10(2):138–148. ## 7. Floody PAD, Caamaño-Navarrete F, Martínez-Salazar C, Jerez-Mayorga D, Carter-Thuiller B, Pinillos FG, Román PL. Childhood obesity and its association with the feeling of unhappiness and low levels of self-esteem in children of public schools. Nutr Hosp. 2018;35(3):533–537. doi: 10.20960/nh.1424. PubMed PMID: 29974758. Spanish. ## 8. Chen J, Ho SY, Leung LT, Wang MP, Lam TH. Associations of unhappiness with sociodemographic factors and unhealthy behaviours in Chinese adolescents. Eur J Public Health. 2017;27(3):518–524. doi: 10.1093/eurpub/ckx015. PubMed PMID: 28430967. ## 9. White SW, keoing K, Scahill L. Social Skills development in children with autism spectrum disorders: A review of the intervention research. J Autism Dev Disord. 2002;37(10):1858-68. doi: 10.1007/s10803-006-0320-x. PubMed PMID: 17195104. ## 10. Kuoch H, Mirenda P. Social story interventions for young children with autism spectrum disorders. J Focus Autism Develop Disabal.2003;18(4):219-227. ## 11. Weiss MJ, LaRue RH, Newcomer A. Social skills and autism: understanding and addressing the deficits. In Matson JL. Applied behavior analysis for children with autism spectrum disorder. New York, USA: Springer; 2009. ## 12. Srinivasan S, Pescatello LS, Bhat AN. Current perspectives on physical activity and exercise recommendations for children and adolescents with autism spectrum disorders. Phys ther. 2014;94(6):875-89. doi: 10.2522/ptj.20130157. PubMed PMID: 24525861; PubMed Central PMCID: PMC4040426. ## 13. McChesney G, Toseeb U. Happiness, self-esteem, and prosociality in children with and without autism spectrum disorder: Evidence from a UK population cohort study. Autism Res. 2018;11(7):1011–1023. doi: 10.1002/aur.1957. PubMed PMID: 29979489. ## 14. Lung FW, Shu BC, Chiang TL, Lin SJ. Prevalence of bullying and perceived happiness in adolescents with learning disability, intellectual disability, ADHD, and autism spectrum disorder: In the Taiwan Birth Cohort Pilot Study. Medicine. 2019;98(6):e14483. doi: 10.1097/MD.0000000000014483. PubMed PMID: 30732217; PubMed Central PMCID: PMC6380693. ## 15. Sheikh M, Bay N, Ghorbani S, Esfahaninia A. Effects of Peers on Motivation and Physical Activity Behavior of Adolescent Students: An Investigation of Trans-Contextual Model. Int J School Health. 2021;8(1):47-54. doi: 10.30476/intjsh.2021.90210.1129. ## 16. Sheikh M, Bay N, Ghorbani S, Esfahani nia A. Effects of Social Support and Physical Self-efficacy on Physical Activity of Adolescents. Int J Pediatr. 2022;10(4):15823-15834. doi: 10.22038/ijp.2022.62762.4793. ## 17. Ghorbani S, Rezaeeshirazi R, Shakki M, Noohpisheh S, Farzanegi P. The role of BMI, physical activity and the use of electronic device in the status of trunk abnormalities in male adolescents. J Gorgan Univ Med Sci. 2020;22(3):129-136. Persian. ## 18. Dana A, Habibi Z, Asgari F, Hashemi M. Description of gross and fine motor skills for 9- and 10-years old children of Golestan province and comparison to each other. Middle East J Sci Res. 2011;8(2):401-406. ## 19. Dana A, Habibi Z, Hashemi M, Asghari A. A description and comparison of anthropometrical and physical fitness characteristics in urban and rural 7-11 years old boys and girls in Golestan Province, Iran. Middle East J Sci Res. 2011;8(1):231-236. ## 20. Lahart I, Darcy P, Gidlow C, Calogiuri G. The Effects of Green Exercise on Physical and Mental Wellbeing: A Systematic Review. Int J Environ Res Public Health. 2019;16(8):1352. doi: 10.3390/ijerph16081352. PubMed PMID: 30991724; PubMed Central PMCID: PMC6518264. ## 21. Baniasadi T, Ranjbari S, Khajehaflaton S, Neshati A, Dana A. Effects of Physical Activity on Adiposity in Children: Mediating Role of Self-Esteem and Body-Image. Int J Pediatric. 2022;10(12):17172-17181. doi:10.22038/ijp.2022.67562.5043. ## 22. Dana A, Christodoulides E. The Effects of a Period of Selected Physical Activity on Improving Manipulative and Locomotors Skills of Children with Neuropsychological Learning Disabilities. J Rehabil Sci Res. 2020;7(1):25-30. doi: 10.30476/jrsr.2019.81592.1006. ## 23. Ghorbani S, Afshari M, Eckelt M, Dana A, Bund A. Associations between Physical Activity and Mental Health in Iranian Adolescents during the COVID-19 Pandemic: An Accelerometer-Based Study. Children.2021;8(11):1022. doi: 10.3390/children8111022. ## 24. Abdoshahi M, Ghorbani S. Effects of Playground Availability on Participation of Children in Physical Activity: The Role of Socioeconomic Status. Int J School Health. 2022;9(3):186-191. doi: 10.30476/intjsh.2022.96051.1245. ## 25. Ghorbani S, Tayebi B, Deylami K, Rahmannia G, Shakki M. The Effect of Physical Education in Schools on the Motivation and Physical Activity Behavior of Adolescents: An Examination of the Trans-Contextual Model. Res Educ Sport. 2021;8(21):179-196. doi: 10.22089/res.2020.8805.1866. Persian. ## 26. Chaharbaghi Z, Hosseini FB, Baniasadi T, Moradi L, Dana A. Impact of Physical Activity on Resilience among Teenage Girls during the COVID-19 Pandemic: A Mediation by Self-Esteem. Women Health Bull. 2022;9(2):80-85. doi: 10.30476/whb.2022.94451.1166. ## 27. Evenson KR, Catellier DJ, Gill K, Ondrak KS, McMurray RG. Calibration of two objective measures of physical activity for children. J Sports Sci. 2008;26(14):1557-65. doi: 10.1080/02640410802334196. PubMed PMID: 18949660. ## 28. Choi L, Liu Z, Matthews CE, Buchowski MS. Validation of accelerometer wear and non-wear time classification algorithm. Med Sci Sports Exerc. 2011;43(2):357-64. doi: 10.1249/MSS.0b013e3181ed61a3. PubMed PMID: 20581716; PubMed Central PMCID: PMC3184184. ## 29. Wijndaele K, Westgate K, Stephens SK, Blair SN, Bull FC, Chastin SFM, et al. Utilization and harmonization of adult accelerometry data: review and expert consensus. Med Sci Sports Exerc. 2015;47(10):2129-39. doi: 10.1249/MSS.0000000000000661. PubMed PMID: 25785929; PubMed Central PMCID: PMC4731236. ## 30. Hills P, Argyle M. The Oxford Happiness Questionnaire: A compact scale for the measurement of psychological well-being. Personality and Individual Differences. 2002;33(7):1073–1082. doi: 10.1016/S0191-8869(01)00213-6. ## 31. Lovibond SH, Lovibond PF. Depression Anxiety Stress Scales (DASS--21, DASS--42). APA PsycTests; 1995. doi: 10.1037/t01004-000. ## 32. World Health Organization. WHO guidelines on physical activity and sedentary behaviour. World Health Organization; 2020. Available from: https://apps.who.int/iris/handle/10665/336656. ## 33. Richards J, Jiang X, Kelly P, Chau J, Bauman A, Ding D. Don’t worry, be happy: Cross-sectional associations between physical activity and happiness in 15 European countries. BMC Public Health. 2015;15:53. doi: 10.1186/s12889-015-1391-4. PubMed PMID: 25636787; PubMed Central PMCID: PMC4320474. ## 34. Cheon H, Lim S. Pursuing Sustainable Happiness through Participation in Exercise for South Korean Students: Structural Relationships among Exercise, Mental Health Factors, School Satisfaction, and Happiness. Sustainability. 2020;12(9):3797. doi: 10.3390/su12093797. ## 35. Moljord IEO, Moksnes UK, Eriksen L, Espnes GA. Stress and happiness among adolescents with varying frequency of physical activity. Percept Mot Skills. 2011;113(2):631–46. doi: 10.2466/02.06.10.13.PMS.113.5.631-646. PubMed PMID: 22185078. ## 36. Maher CA, Toohey M, Ferguson M. Physical activity predicts quality of life and happiness in children and adolescents with cerebral palsy. Disabil Rehabil. 2016;38(9):865–9. doi: 10.3109/09638288.2015.1066450. PubMed PMID: 26218617. ## 37. Ruiz-Ariza A, De la Torre-Cruz MJ, Appelqvist-Schmidlechner K, Tamminen N, Martínez-López EJ. Does physical fitness and parenting transformational style predict happiness and well-being and distress in adolescents? Retos. 2020;38:626–631. doi: 10.47197/retos.v38i38.78198. ## 38. Freire T, Ferreira G. Do I need to be positive to be happy? Considering the role of self-esteem, life satisfaction, and psychological distress in Portuguese adolescents’ subjective happiness. Psychol Rep. 2020;123(4):1064–1082. doi: 10.1177/0033294119846064. PubMed PMID: 31033417. ## 39. Choi YS, Shin HK, Hong DY, Kim JR, Kang YS, Jeong B, et al. Self-esteem as a Moderator of the Effects of Happiness, Depression, and Hostility on Suicidality Among Early Adolescents in Korea. J Prev Med Public Health. 2019;52(1):30–40. doi: 10.3961/jpmph.18.095. PubMed PMID: 30742759; PubMed Central PMCID: PMC6378391. ## 40. Abdollahi A, Talib MA, Motalebi SA. Emotional intelligence and depressive symptoms as predictors of happiness among adolescents. Iran J Psychiatry Behav Sci. 2015;9(4):e2268. doi: 10.17795/ijpbs-2268. PubMed PMID: 26834804; PubMed Central PMCID: PMC4733308. ##