Dr. Mayhew is an author and military medical historian specializing in the study of severe casualty, its infliction, treatment, and long-term outcomes in 20th- and 21st-century warfare.
She is a historian in residence in the Department of Bioengineering at Imperial College in London, working primarily with the researchers and staff of the Centre for Injury Studies. She is a trustee of the Advance Cohort Study and is part of the team that put together the Paediatric Blast Injury Field Manual.
Her most recent book, The Four Horsemen: War, Pestilence, Famine and Death and the Hope of a New Age, looks at advances and challenges in science, medicine (especially AMR), technology, and humanitarianism. Her book, A Heavy Reckoning: War, Medicine and Survival in Afghanistan and Beyond, focuses on casualties from the early 21st-century war in Afghanistan and the meaning of their survival for all those suffering from severe trauma. A Heavy Reckoning is the final part of the Wounded trilogy: The Guinea Pig Club: Archibald McIndoe and the RAF in World War Two and Wounded: The Long Journey Home from the Great War.