Writing in Humanosphere, Martin Drewry, director of Health Poverty Action, examines the effects of migration on the “brain drain” of health workers. Drewry writes, “The health worker brain drain is one topic within a myriad of issues when it comes to migration — and within the broader debate it will doubtless bump up against other considerations. But, in view of its impact on poverty and global health, and despite the complexities, the inequitable distribution of health workers is an issue the world simply must address” (4/18).