TY - RPRT AU - Green, Colin P. AU - Heywood, John S. AU - Paniagua, Maria Navarro TI - This Girl Can? The Effect of Promoting Physical Activity on Health Outcomes PY - 2026/Mar/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 18472 UR - https://www.iza.org/index.php/publications/dp18472 AB - Physical activity likely improves health. Yet, even as health outcomes are positively associated with physical activity, confounding bias exists. We examine a large-scale government campaign to encourage physical activity among women in the United Kingdom as a source of an exogenous increase. Our difference-in-differences estimates confirm a large increase in activity associated with the campaign. We use this as the basis of IV estimation indicating that physical activity leads to a reduction in BMI and a lower chance of obesity, but we find no change in other health conditions over our four-year window. Implications for policy and future research are discussed. KW - public service campaign KW - physical activity KW - women’s health ER -