This hidden work is hard to measure, because it’s invisible and performed internally, making it difficult to know where it starts and ends. In 2019 Allison Daminger, a doctoral candidate in sociology and social policy at Harvard University, found that while most participants in her study on cognitive household labour realised that women were doing the lion’s share, this wasn’t yet a “normalised form of work”. In the study of 35 couples, she found that men referred to their wives using terms such as “project manager”, or said they were “keeping track of more”.