Mental health and education are crucial contributory factors in the welfare of the individual. Higher incidences of many mental disorders are found among populations with a low level of education. Difficulties in school and professional education may also predict adult mental disorders. The relationship between education and mental disorder has fairly seldom been analysed in empirical studies and further studies are therefore needed, as is an integration of educational policies in the prevention and care of mental disorders. In the Northern Finland Health and Well-being Study based on the Northern Finland 1966 Birth Cohort, education and its determinants is one of the main aspects studied.