As part of our Play to Learn (PtL) research, NYU Global TIES for Children - in partnership with icddr,b - is conducting a longitudinal prenatal and early years cohorts study which follows caregivers and their young children from the Rohingya refugee and host communities in Cox’s Bazar, Bangladesh. The study starts in the prenatal period and continues through the first years of life. It aims to investigate, longitudinally, the potential lifespan health and developmental implications of being conceived, gestated, born, and raised in contexts of war and displacement.