My relationship with my PhD supervisor has become toxic — what do I do? Nature, Published online: 03 March 2026; [doi:10.1038/d41586-025-04126-w][1] A graduate student in China has become seriously depressed after facing frequent verbal abuse. [1]: https://www.nature.com/articles/d41586-025-04126-w https://www.nature.com/articles/d41586-025-04126-w