We investigated dietary lifestyles of the elementary school and the junior high school students of a area in H city of Hiroshima pref. Not a few students had the disordered dietary lifestyles and the undesirable life pattern, also had some indefinite complaint. These trends appeared more clear in the junior high school students than the elementary school students, and increased for every additional school year. The Rohrer index were concerned with their indefinite complaint and breakfast intake in the junior high school students. It was suggested that taking no breakfast and late-night snacks caused irregular life patterns, being late for hour of rising and bedtime, and influenced on the expression of indefinite complaint and the body type.