[Contents] Introduction, methods and demographics. Results. 1. Overweight and dietary behaviours. 2. Physical activity. 3. Cigarette smoking. 4. Alcohol and other drugs use. 6. Sexual behaviours that contribute to HIV infection, other sexually transmitted infections and unintended pregnancy. 6. Bullying. 7. Mental health. 8. Protective factors. References. Appendix I: 2007 Seychelles fact sheet, age 13-15 years. Appendix II: Tables of prevalence of risk behaviours, age 11-17 years. Appendix III: Correlations between selected risk behaviours, age 13-15 years. Appendix IV: 2007 Seychelles GSHS questionnaire.