The National Adolescent Student Health Survey (NASHS) was designed to assess students' health-related knowledge, attitudes, and behaviors in eight areas of critical importance to the health of youth. Two grade levels, eighth and tenth, were chosen to be the focus of the study. The survey provides a national profile of students at these two grade levels in the following areas: (1) injury prevention; (2) suicide; (3) AIDS; (4) sexually transmitted disease; (5) violence; (6) tobacco, drug, and alcohol use; (7) nutrition; and (8) consumer skills. The survey was administered to more than 11,000 students in the fall of 1987. The results of the study are presented by content area. Each section begins with a brief description regarding the importance of the content area to adolescent health. A brief synopsis of the survey items and findings is also provided in the introductory paragraphs. Highlights of key results from the survey are provided with references to the survey booklets used in the study and to comprehensive tables which follow each section. These tables present the percentage of students who selected each response option for every item on the survey in a given content area. An analysis is presented of the implications of the results. Recommendations are made on curriculum development, health instruction, professional preparation, legislation, and community cooperation. The survey booklets are appended. (JD)