13. Calls upon States, in collaboration with civil society and other relevant actors, to promote educational and health practices in order to foster a culture in which menstruation is recognized as healthy and natural, and girls are not stigmatized on this basis, recognizing that girls’ attendance at school can be affected by negative perceptions of menstruation and lack of means to maintain safe personal hygiene, such as water, sanitation and hygiene facilities in schools that meet the needs of girls;