Cassandra obtained her PhD in Genetics from the Institute of Healthy Ageing at University College London, UK. She joined The Lancet in 2013, first as a Senior Editor at The Lancet Oncology, before being promoted to Deputy Editor at the same journal. During this first stint at The Lancet, Cassandra also held the post of Acting Executive Editor of The Lancet Haematology. In 2018, she left the group to write a popular science book, ENOUGH, which addressed the intersection between preventative medicine, the environment, and nutrition (Hachette, Jan 2021). Returning to The Lancet in 2020, Cassandra became the founding Editor-in-Chief of The Lancet Healthy Longevity.