• ProfessorOwl_PhD [any]@hexbear.net
    link
    fedilink
    English
    arrow-up
    1
    ·
    9 months ago

    You mean apart from them occuring at set intervals? The length of time between the average women’s periods is 28 days, but the moon’s 28 day cycle is 100% reliable, and always happens regardless of individual stressors. Having a regular solar event that confirms you’re accurately keeping track of days is pretty practical.