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Humans have an internal lunar clock – but light pollution is disrupting it
- ggm-at-algebras 1y ago> Before around 2010 – when LED lighting and smartphone use became widespread – many women’s menstrual cycles tended to begin around the full Moon or new Moon phases. Afterwards, that synchrony largely vanished, persisting only in January, when the Moon-Sun-Earth gravitational effects are strongest.[0] Usually I just pass by the refs but this time I felt moved to read. [0] https://www.tandfonline.com/doi/abs/10.1080/09291016.2013.830508 https://www.tandfonline.com/doi/abs/10.1080/09291016.2013.83...