https://sciencemediacentre.es/en/grandparents-exposure-environmental-chemicals-could-influence-their-granddaughters-first
Grandparents, granddaughters and first menstruation
Jul 13, 2025 - Exposure to environmental chemicals by grandparents could influence the age at their granddaughters had first menstruation, according to a study
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https://ritualwell.org/ritual/ritual-for-a-girl-on-her-first-menstruation-welcoming-your-daughter-into-womanhood/
Ritual for a Girl on her First Menstruation, Welcoming your Daughter into Womanhood - Ritualwell
Sep 16, 2025 - A range of ideas to help a mother create a ritual for her child's first period
a girlfirst menstruationyour daughterritualwelcoming