Macarena Peña y Lillo is an associate professor in the Faculty of Communication and Letters at Diego Portales University and an adjunct researcher at the Millennium Nucleus for Digital Inequalities and Opportunities (NUDOS). She holds a Ph.D. in Communication from the University of Illinois at Urbana-Champaign, United States, a Master’s degree in Communication from the same university, and a Journalism degree from the University of Chile. Her research area focuses on health communication, specifically addressing inequalities in access to and use of health information, strategic health communication, and the design and evaluation of public health campaigns. She has led the FONDECYT initiation project (No. 11180916) titled “Health information environments and their impact on the adoption and maintenance of healthy behaviors” and the project from the Competition for the Rapid Allocation of Resources for Research Projects on Coronavirus (ANID-COVID0508) titled “Information environments on COVID-19 and adoption of preventive behaviors in the general population and at-risk groups.” Her work has been published in over 20 articles in national and international journals and book chapters.