ArticlePediatric research2026
Associations of mental health with subsequent weight development during a 4-year follow-up in adolescence.
Article in Pediatric research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundAlthough obesity and mental health problems represent two of the most pressing public health challenges, their developmental interplay remains insufficiently understood. Thus, we examined how depressive and anxiety symptoms, self-esteem, and psychological resilience are associated with weight development during adolescence.
methodsWe included 1280 11-year-old children from the Finnish Health in Teens cohort, following 814 of them for 4.3 years. Mental health was assessed with validated self-administered scales at age 11. Psychological resilience was determined by complete mental health after exposure to stressful life events. Body mass index z-score (BMIz) and waist-to-height ratio (WtHr) were calculated at ages 11 and 16.
resultsIn models adjusted for sex, age, physical activity, dietary pattern, puberty status, caregivers' BMI and education level, depressive symptoms were associated with higher baseline BMIz but smaller increases in mean BMIz thereafter (p = 0.030). High self-esteem was associated with lower baseline BMIz, yet with steeper increases over follow-up (adjusted model, p = 0.021). Anxiety symptoms and resilience were not associated with BMIz after adjustments. Similar patterns were observed for WtHr.
conclusionFindings highlight that mental health is associated with physical growth in adolescence, emphasizing the need to consider mental health in understanding and addressing patterns of weight development and their underlying dynamics. IMPACT: This study provides up-to-date, longitudinal evidence on how mental health shapes subsequent weight development during the critical and rapid growth period of adolescence. Both positive and negative dimensions of mental health play a role in shaping adolescent weight development, with evidence that some youths experiencing mental health difficulties exhibited smaller increases in BMI z-score, even when starting from a higher baseline BMI. It should be acknowledged that in contemporary society, adolescents with mental health difficulties may not necessarily present immediate excessive weight gain but instead follow stable or even declining weight trajectories.
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