The Structures of Caring.

The World Health Organization defines social determinants of health as "the conditions in which people are born, grow, work, live, and age, and the wider set of forces and systems shaping the conditions of daily life." This current journal issue has the theme of structural determinants of health. In 2016 ( Vol. 22), we published 49 articles in four issues addressing Determinants of Health: Social Determinants, Structural Determinants, Caregiver Determinants, and Global Determinants. This editorial presents the highlights of those four journal issues, then connects each of the articles in this current issue to the theme; these articles reveal the systems and structures that support our caring from many angles, levels, and perspectives. Readers are challenged to recognize the potential, embedded in every system and structure, for disparities in the provision of our care.