Seizing the opportunities of adolescent health.

Economic and social change have brought great opportunities and threats to adolescent health for rich and poor nations alike. The health transition, together with changes in adolescent social roles, has shifted the burden from childhood infectious diseases towards adolescent injuries and health-jeopardising behaviours in all but the poorest countries. Fortunately, research has clarifi ed many determinants of these behaviours, and wide-ranging prevention approaches to minimise harm and promote health have been identifi ed. The challenge is how to increase use of effi cacious policies and programmes worldwide, while recognising that communities and nations diff er and need to make local decisions. Likewise, there is a need to understand that adolescent health contributes to adult health and can deliver economic dividends to nations that invest wisely in adolescent health. Published Online April 25, 2012 DOI:10.1016/S01406736(12)60472-3