From 6th grade to high school, new data shows teen health declining in Korea

In a nation where academic pressure intensifies sharply as children grow older, a groundbreaking multiyear study is revealing how the physical and mental health of teenagers deteriorates over time. As students trade play for cram schools, public health officials are uncovering the long-term toll of childhood in one of the world's most competitive societies. The Korea Disease Control and Prevention Agency released raw data Tuesday from its sixth annual Youth Health Panel Survey. The initiative tracks a single cohort of 5,051 students who entered the study in 2019 as sixth-graders through their high school graduation in 2028. The latest dataset follows 4,141 of these students — an 82 percent retention rate — through their second year of high school in 2024. The 2024 dataset introduces 29 core health indicators spanning five major domains: diet, physical activity, tobacco use, alcohol consumption and general illness. Crucially, the survey added specific metrics measuring screen addiction and high-caffeine energy drink consumption, capturing how teenagers cope with grueling academic sch