Training in basic hygiene, food and water safety, basic nutrition, dignity-based reproductive education, and the importance of immunizations can help young girls survive childhood. Additionally many people in the developing world die from preventable diseases. Although some of these conditions require intensive intervention, many diseases, including some communicable diseases, as well as heart disease and stroke, can be prevented by providing communities with adequate, evidence-based information about health. Community leaders can identify the most effective strategies, such as health education through trained volunteers in local churches.