Professor Lewis's research focuses on the placenta and how the placenta functions to ensure that the baby is born healthy. The placenta is a fetal organ which feeds the fetus in the womb and cleans toxins and waste products from its blood. If the placenta works well the baby is born healthy and is more likely to remain healthy for longer across its life. Professor Lewis takes an interdisciplinary approach combining functional studies with multiscale 3D imaging and mathematical modelling to develop an integrated understanding of placental function.