Global student health survey: obesity and underweight both rising among high schoolers

The 2026 Global School-Based Student Health Survey reports an increase in both overweight/obese and underweight high school students, indicating a dual burden of malnutrition. The survey's scope and specific country data are not yet detailed, but the trend signals worsening adolescent metabolic health and food insecurity. This matters for public-health planning and potential long-term healthcare costs.