This chapter shows the process of applying a Human Security lens to the analysis of the public health response to disasters, particularly to the problem of neglected chronic disease needs. It suggests three areas for development: a multidisciplinary platform to coordinate relief response, a Human Security Needs Assessment to identify vulnerable groups and the setting of thresholds for action. These development areas could improve the public health response to post-disaster chronic disease needs as well as the overall response to disasters but would move forward the concept of Human Security, giving it a concrete operational role in disaster response. The demographic and epidemiological transitions affecting the global population have resulted in significant and increasing levels of chronic disease, particularly in middle-income, disaster-prone countries. Natural disasters can worsen a person's existing chronic disease, for instance by causing physical and mental stress. Failing to address chronic disease needs post-disaster will therefore lead to contribute to the very death and illness.