<h1>Investing in women's health can drive economic gains and requires policy action on data, research, guidance, and funding.</h1> Investing in women's health is presented as an economic and policy priority, recommending targeted action on nine priority conditions and the deployment of the Women's Health Impact Tracking (WHIT) platform to address gaps in sex-specific data, clinical research reporting and health outcomes. The report sets five core actions for stakeholders: improved data collection, funding for female-specific research, reform of clinical guidelines, inclusion of marginalized groups, and mobilisation of investment for women-centred care and delivery models to close measurable health gaps.