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• Social media threats and health among adolescents : evidence from the health behaviour in school-aged children study 

  Lahti, Henri; Kokkonen, Marja; Hietajärvi, Lauri; Lyyra, Nelli; Paakkari, Leena (BioMed Central, 2024)

  Background Social media are immensely popular among adolescents. Thus, concerns have been raised about the threats adolescents encounter on social media and the possible negative health consequences, such as depressive ...

• Overweight adolescents’ self-perceived weight and weight control behaviour: HBSC study in Finland 1994–2010 

  Ojala, Kristiina; Tynjälä, Jorma; Välimaa, Raili; Villberg, Jari; Kannas, Lasse (Hindawi Publishing Corporation, 2012)

  Introduction. Overweight and perception of being overweight, may lead adolescent to lose weight. The aim of the present study was to investigate overweight adolescents’ self-perceived weight, body dissatisfaction, and ...

• Trends in excellent self-rated health among adolescents : A comparative Nordic study 

  Potrebny, Thomas; Torsheim, Torbjørn; Due, Pernille; Välimaa, Raili; Suominen, Sakari; Eriksson, Charli (Universitetsforlaget, 2019)

  Background: Excellent self-rated health (SRH) can be seen as an important component of positive health among adolescents. The aim of this paper is to examine time trends of excellent health among adolescents in five Nordic ...

• Problematic Social Media Use and Health Among Adolescents 

  Paakkari, Leena; Tynjälä, Jorma; Lahti, Henri; Ojala, Kristiina; Lyyra, Nelli (MDPI AG, 2021)

  1) Background: The use of social media has become an integral part of adolescents’ daily lives. However, the intensive use of social media can develop into a health-threatening addiction, but unfavourable health consequences ...

• Predictors of mortality in old age : contribution of self-rated health, physical functions, life satisfaction and social support on survival among older people 

  Lyyra, Tiina-Mari (University of Jyväskylä, 2006)

  Length of life is perhaps the best single indicator of the health of a population. The purpose of the present series of studies was to explore the potential predictors of mortality in older people with special emphasis on ...