Aims: Health-related behaviours are associated with social relationships. Adolescence is a time when healthy and unhealthy behaviours are established. There is a need to investigate adolescents' views on how social relationships are related to health-related behaviours of adolescents in the Scandinavian welfare system. This study aimed to explore Swedish adolescents' experiences and thoughts of how social relationships in different social environments are related to health-related behaviours. Methods: A total of 36 adolescents aged 15-16 years were interviewed in seven focus-group sessions. Qualitative content analysis was used for analysis of the transcribed interviews. Results: Two themes - social context and personal management - emerged. Swedish adolescents describe that their health-related behaviours as being partly shaped by their own personal management but mainly by the social contexts that surround them. Social contexts were expressed as playing a role in the adolescents' health-related behaviours, as they provide fellowship, pressure, dependability and engagement. Fellowship with friends and family was expressed as providing healthy behaviours and high levels of well-being. Fellowship with friends was particularly important for physical activity. Close relationships were stated to influence health-related behaviours. Pressure from friends, teachers and social media were described as mainly influencing unhealthy behaviours and, to some extent, low levels of well-being. However, adolescents' personal ability illustrated how adolescents shaped their own health-related behaviours. Conclusions: The study results contribute to the understanding of Swedish adolescents' views on how social relationships can shape their health-related behaviours. The findings may be useful to school professionals in supporting adolescents to improve well-being and healthy behaviours.
Keywords: Adolescents; health-related behaviours; social environments; social relationships.