Ochiai H, Shirasawa T, Nishimura R, et al. - In this study with 1,436 fourth-grade school children (9 or 10 years of age), including 720 boys and 716 girls, recruited from all four of Ina town’s elementary schools in Japan, researchers focused on the shifts in overweight/obesity and central obesity status in schoolboys and schoolgirls from preadolescence to adolescence. Findings revealed substantial tracking of overweight/obesity from preadolescence to adolescence in boys and girls. Moreover, central obesity in adolescence was experienced by more than half of those who developed central obesity in preadolescence. Based on the findings, the implementation of a primary prevention program targeting overweight/obesity and central obesity in elementary schools before fourth grade seemed important.