INTRODUCTION Sports and physical activity are major components of a healthy lifestyle. The objective of this study was to analyze the relationship between sport and physical activity and alcohol consumption among adolescent students based on gender. POPULATION AND METHODS Descriptive, crosssectional, comparative study conducted in adolescent students (aged between 14 and 17 years old) from th...

OBJECTIVE Adolescent boys' involvement in pregnancy and sexual risk behavior is a public health concern. Although research has identified predictors of sexual risk behavior during adolescence, few studies have investigated precursors to boys' sexual risk behavior beginning in early childhood, the identification of which could serve to inform interventions and help reduce involvement in pregnanc...

BACKGROUND Constitutional delay of growth and puberty (CDGP) is a variation of the onset and timing of pubertal development without a defined endocrine abnormality. Recently published studies indicate that leptin and ghrelin play a role in puberty initiation and progress. They have been implicated in regulation of GnRH secretion, with ghrelin having inhibitory and leptin, facilitatory effects. ...

Background Adolescence is the transient period from childhood to adulthood and the beginning of physical, mental and social changes. Understanding and meeting adolescents’ needs may have important effects on reducing theirs dangerous behaviors and therefore, will result in a more health society. This study aimed to assess the reproductive health needs of Iranian adolescent. Materials and Method...

BACKGROUND AND AIMS Non-alcoholic fatty liver disease (NAFLD) and polycystic ovary syndrome (PCOS) share risk associations of adiposity and insulin resistance. We examined the impact of a PCOS diagnosis on the metabolic phenotype of adolescent girls with NAFLD and compared this to girls without PCOS or NAFLD and to age-matched boys. METHODS Community-based adolescents from the Raine Cohort pa...