Trends in the health of migrants can swing in many ways. Once legally settled and integrated within a health system, migrant health have been typically found to improve from place of origin – although as Marmot famously found – this is by no means always the case (study of Japanese migrants to the USA, or Irish migrants across the world. Between point of departure and point of arrival, migrants face the most health risks and migration health has become a growing pillar of global health policy and practice – whether it be the movement of health care workers , refugees economic migrants or family reunificaton.