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Why Do Women Have Periods?

22,2000 people are searching ‘Why do women have periods?’ each month. Have you ever been told you don’t need a period? Don’t believe it! The truth is, regular menstruation plays an important role in a woman’s overall health, and not just to prepare for pregnancy. Natural Womanhood’s “Reasons Women Need Periods” article series is a review of the most up-to-date research on hormonal health and the impact of ovulation on the female body. These articles take a deep, evidence-based dive into some of the reasons women need their cycles for optimal health.

Have you read all of the RWNP articles and want to see how your period health and fertility knowledge stacks up? Take our quiz by clicking here.

This page was last updated on April 24, 2024.

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    What polar bears can tell us about why women have periods
    By Kristen Curran • December 31, 2024
    Evolutionary biology has its reasons
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    Reasons Women Need Periods: The Role of the Menstrual Cycle in Preparing the Uterus for Pregnancy 
    By Clare Sharp • October 12, 2023
    Even before you start trying to conceive
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    Reasons Women Need Periods: The Role of the Menstrual Cycle in Breast Health & Development
    By Cassondra Moriarty • April 8, 2022
    and its connection to cancer prevention
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    Reasons Women Need Periods: The Role of the Menstrual Cycle in Brain Health & Development
    By Cassondra Moriarty • November 14, 2020
    And why cycles are so important for teen braindevelopment
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    Reasons Women Need Periods: The Role of the Menstrual Cycle in the Immune System
    By Cassondra Moriarty • August 10, 2020
    When it comes to periods, misinformation abounds. Periods and period research have long been stigmatized, so it’s no…
  • Natural Womanhood, Fertility Awareness Based Methods, Natural Family Planning, NFP, FABM, FAM, birth control side effects, womens health, reproductive health, fertility awareness, taking charge of your fertility, know more about your body, understanding fertility, understanding fertility health, improving fertility health, improving women's health, natural birth control, heart health, reasons women need periods, women need menstrual cycles, women need periods, heart health and menstrual cycle, periods and heart health, ovulation and heart health, fertility and heart health, estrogen and heart disease, progesterone and heart disease, hormones and heart disease

    Reasons Women Need Periods: The Role of the Menstrual Cycle in Heart Health
    By Cassondra Moriarty • June 5, 2020
    Welcome back for our third installment of “Reasons Women Need Periods,” a series dedicated to taking a deep…
  • Natural Womanhood, Fertility Awareness Based Methods, Natural Family Planning, NFP, FABM, FAM, birth control side effects, womens health, reproductive health, fertility awareness, taking charge of your fertility, know more about your body, understanding fertility, understanding fertility health, improving fertility health, improving women's health, natural birth control, reasons you need a period, reasons women need periods, ovulate, menstruate, ovulation, menstruation, bone health, bone development, bone density, osteoporosis, prevent osteoporosis, cycling for bone health, menstrual cycle and bone health, cycles and bone health, ovulation and bone health

    Reasons Women Need Periods: The Role of the Menstrual Cycle in Bone Health & Development
    By Cassondra Moriarty • May 12, 2020
    Welcome back for our second installment of “Reasons Women Need Periods,” a series dedicated to taking a deep…