As a follow to the previous episode about having a baby and discussions of conception and breastfeeding is this special including excerpts from conversations with previous guests with related specialist views. Reproductive geneticist Nada Kubikova speaks about declining fertility, miscarriages, and Preimplantation Genetic Diagnosis which can be used during IVF to identify embryos affected by genetic defects (recorded Feb 2017). At the time of recording Nada was a doctoral researcher within the Institute of Reproductive Sciences at the University of Oxford. Dr Julie Smith is an Associate Professor at the Research School of Population Health at ANU who has been an expert advisor to the World Health Organisation. Julie speaks about some of the evolutionary health benefits of breastfeeding and public policy contexts and impacts of the hospitalisation of births and emergence of milk formula (recorded Sept 2017).