The Lancet Digital Health, a new gold Open Access journal, building on The Lancet’s tradition as an advocate for health. This monthly journal is committed to publishing high-quality original research, comment, and correspondence contributing to promoting digital technologies in health practice worldwide. By bringing together the most important advances in this multidisciplinary field, The Lancet Digital Health aspires to be the most prominent publishing venue in digital health. The Lancet Digital Health publishes important, innovative, and practice-changing research on any topic connected with digital technology in clinical medicine, public health, and global health. We serve the digital health, clinical, and wider health communities by promoting high-quality science and supporting the ethical use of technologies and data in practice. The Lancet Digital Health’s content crosses subject boundaries, building bridges between health professionals and researchers.