There are some studies that link exposure to clinical mumps (but not mumps vaccination) to decreased risk of ovarian cancer:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2951028/
Dunno. Brigham and Womens Hospital doesn’t seem like quack central.
Brigham and Women’s is a solid outfit. However, the replication rate of medical studies, regardless of where they’re done, is terrifyingly low. And then there’s the correlation vs. causation thing.
I think I’ll reduce my risk of ovarian cancer through clean living.