It’s well known that women living together in dorm rooms are able to synchronize their menstrual cycles; the reason is they are nasally detecting each other’s pheromones.
This is not true. Notice the author does not cite a source for this “fact.” If Williams had researched this, she would have found this myth has been debunked multiple times:
https://pubmed.ncbi.nlm.nih.gov/26181612/
https://helloclue.com/articles/cycle-a-z/do-menstrual-cycles-sync-unlikely-finds-clue-data
https://health.clevelandclinic.org/myth-truth-period-really-sync-close-friends
https://www.healthline.com/health/womens-health/period-syncing
https://www.figo.org/news/period-syncing-myth-debunked
