Abstract Background The quality of school-based sex and relationships education (SRE) is variable in the UK. Digitally-based interventions can usefully supplement teacher-delivered lessons and positively impact sexual health knowledge. Designed to address gaps in core SRE knowledge. STASH (Sexually Transmitted infections And Sexual Health) is a peer-led social network intervention ada... https://macorners.shop/product-category/aop-sweatshirt/