Tap Into The Cyclic Nature of Your Body

Harness the Moon for Better Health

by Christiane Northrup, M.D.

Menstrual Cycle

A friend of mine says that every bus driver in New York City knows when it’s a full moon because all of “the crazies” come out. And there are plenty of police officers, doctors, and others who swear by this statement too. I believe the reason the full moon is thought to turn people into “lunatics” is because our culture no longer understands or honors the entire lunar cycle.

The truth is, everything in our environment has an effect on and within us–whether it’s the sun, our food, the places we frequent, or our thoughts.

How The Moon Affects Your Feminine Body

Many cultures view the female menstrual cycle as a sacred source of insight and renewal. This is partly because the menstrual cycle reflects the macrocosmic cycles of nature, including the waxing and waning of the moon, the ebb and flow of the tides, and even the changes of the seasons.

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While in today’s world many women are not connected to the lunar cycles, their menstrual cycles are still influenced by the moon. Studies have shown that that peak rates of conception and ovulation appear to occur at the full moon or the day before.  It’s also common when women live together for their ovulations and menstruation to be in synch. This is why women living in the same household or dormitory will often menstruate at the same time. It’s like a modern day moon lodge.

Typically the time when women are upbeat, energetic, and outgoing is during the first half of their cycle until ovulation. This coincides with the waxing of the moon leading up to the full moon. After ovulation women become more receptive—both to others and their own inner wisdom. This coincides with the waning of the moon leading up to the new moon. This is the time that we receive the messages we need to hear from our Souls.

It’s common during menstruation as well as pregnancy and menopause for a woman’s emotions and perceptions to be heightened. After menopause your body does not give you the same physical cues as it once did. But you still have this cyclic wisdom available to you.

6 Ways the Moon Regulates Your Body

Scientific research has documented that the moon affects not only the tide, but our individual body fluids and physiological processes by interacting with the electromagnetic fields of our bodies. In addition, further evidence suggests our dreams and emotional rhythms are keyed into the moon and tides as well as the planets.

Here are some ways the different lunar phases influence your body:

1. Regulate your menstrual cycle. When you are tuned into your lunar nature and in synch with the phases of the moon, you will typically start your period around the new moon and be at peak ovulation at the full moon. Studies have shown that peak rates of conception and ovulation appear to occur at the full moon or the day before. However during the new moon ovulation and conception rates decrease overall, and an increased number of women start their menstrual bleeding.

2. Improve surgery outcomes. According to a 2013 study in the journal Interactive Cardiovascular and Thoracic Surgery, patients who had heart surgery during a full moon stayed in the hospital 4 fewer days than patients who had surgery during other lunar cycles.

3. Explain your emotions. You may cry or feel stressed during the new moon. Our solar culture tries to minimize our “new moon emotions” with PMS medications and antidepressants. But many women today realize that despite their best efforts to suppress their symptoms, this phase is not just about cramps, headaches and fatigue. It’s premenstrual truth-telling! You need to acknowledge the strong feelings and intuitions that arise during the new moon phase. This can be the key to eliminating PMS.

4. Influence your energy level. Practitioners of Ashtanga yoga have long taken “moon days” off. They believe that people exhibit too much energy on full moon days, which could lead to injury. During the new moon, Ashtangis participate in activities that calm the mind, such as meditation. You may want to tune into your own energy levels during the full and new moons and see what exercises your body best responds to.

5. Help you conceive. As with menstruation, the timing of the fertility cycle and labor also follows the moon.

6. Affect your sleep. One Swiss study reported in Current Biology, showed that participants who spent 3.5 days in a sleep lab where they were allowed to fall asleep and wake up as they normally would and where there was no access to sunlight or clocks, slept 20 minutes less overall during the full moon. It also took them longer to fall asleep and they had 30% less deep sleep. In addition, the participants had lower levels of the sleep-regulating hormone melatonin.

How to Use the Moon to Improve Your Health

Given our “solar,” on-the-go culture, it is no wonder that women have learned to view their menstrual cycles as a “curse.”  Lunar information is reflective and intuitive. It comes to us in our dreams and our emotions.  Since our culture generally appreciates only what we can understand rationally, many women tend to block the flow of unconscious “lunar” information that comes to them premenstrually or during their menstrual cycle. Taking a week off to go to a moon lodge is far from standard practice today.

But there are ways to honor your lunar nature and improve your health.  For example, you can take a “moon day” (or hour) where you retreat from the stresses of your daily life and reflect.  If you are still menstruating, you can do this either just before your bleeding starts or at its peak around the second day. Women who are able to do this a short time during the new moon are often able to prevent or eliminate painful PMS symptoms.

More Ways to Honor Your Lunar Nature for Better Health

Observe the waning moon. During the last days of the waning moon leading up to the new moon is the time to look inward, honor your body, and assess what’s working and what’s not in your life. It’s a good time to rest and to plan, take breaks from work, and be sure to get enough sleep. Some of the ways you can benefit from the waning moon energy include:

  • Use a journal or calendar to set intentions.
  • Take time to meditate or sit quietly and consciously take notice of your breath.
  • Listen to what your intuition tells you and write down any thoughts or patterns.
  • Repeat this for several lunar cycles.

Act during the waxing moon. The time between the new moon and full moon represents the maturation of the ovum. This is the time that all of the intentions you set during the new moon are best put into action. It’s the time to pursue your greatest joy and give it meaning in your life. Here’s how you can use the waxing moon energy:

  • Choose one intention from the intentions you set during the waning moon.
  • Take one step each day toward putting that intention into action.
  • Record your progress in a journal until the full moon.
  • If you have not completed what you set out to achieve, continue during the next lunar cycle.

Be assertive during the full moon. The full moon is the culmination of outward expression.  Ayurveda teaches that the full moon is when a woman is her strongest. This is the perfect time to:

  • Release anything that is not working in your life (a relationship, a job, or something in your daily routine.)
  • Initiate a new project.
  • Try a new workout routine.
  • Have fun with friends.

Take moon baths. You can do this during the entire lunar cycle. Simply step outside for 15 minutes each night, look at the moon and bask in its glow. If you want you can dance under its light. Do what feel right as you tune into the moon’s energy and notice how your body feels. 

Participate in a moon ritual. If participating in a moon ritual appeals to you, you may want to try a modern day moon lodge (new moon) or a women’s circle (full moon.) You can also do something as simple as taking a dance, drumming or art class with several of your female friends during the appropriate moon phase.

How do you honor your lunar nature?  Please leave me a message in the comments section below.

Last Updated: August 23, 2023

Christiane Northrup, M.D.

Christiane Northrup, M.D., is a visionary pioneer and a leading authority in the field of women’s health and wellness. Recognizing the unity of body, mind, and spirit, she empowers women to trust their inner wisdom, their connection with Source, and their ability to truly flourish.


Add comment
  1. monica
    9 months ago

    It’s amazing how as woman we are cyclic beings and how the moon and planets affect all people. Thanks for this contribution to our consciousness.

  2. Suzanna
    4 years ago

    Hi Dr. Christine, I have read your books and am absolutely enthralled by your spiritual connection with the universe. Since living a back to nature lifestyle for most os my adult life, I feel your teachings resonate. Basking by the light of the moon is likened to sun bathing. Thanks for your tidbits on all aspects of being human. I have three boys, three girls and three grandsons. I try and teach them your views on synchronizing with our natural cycles!

  3. Joanne Young
    7 years ago

    I am so drawn to the full moon. I find myself just staring at it with such an emotional feeling. Thank you for finally clarifying this whole experience. Now I understand what’s really going on and I can’t wait to honor it at the next full moon!!!! Thank you!!!!!!

  4. Deborah Burcham
    7 years ago

    How does the moon affect the post-menopausal woman, who no longer has a menstrual cycle and/or ovulation? What are the differences in how the moon affects us versus a pre-menopausal woman? I wish I had been familiar with this when I was younger, but I’m curious to know more about how it affects older women.

    1. Elisabetta
      7 years ago

      If you observe yourself, you can easily see that our post-menopausal cycle fully follows the lunar cycle.

      1. Paula Wynne
        3 years ago

        I am menopausal but am actually getting menstrual like cramps and believe it is a result of the full moon.

  5. Macinsey
    7 years ago

    Hi Dr. Northrup,

    I am gaining so much clarity and peace from the wisdom you’re sharing. I’m breastfeeding my eight month old right now and plan to do so for quite a while longer so I wonder if you have any information on the feminine body while breastfeeding? I imagine the cycles still have an impact but do they differ from a menstruating woman?

  6. Clarissa
    7 years ago

    Amazing!!! I’m very connected to the moon and my menstrual cycle and emotions. I love painting mandalas and during my moon this is the best practice I do to honor my body and my feelings. Painting mandalas help me become more intuitive especially during my period. It’s amazing what comes out when I give myself time to listen to my heart and body as I paint mandalas and I reflect on my life. It is also the best time to be around nurturing and loving feminine energy!!

  7. Amber
    7 years ago

    Your articles are truly inspirational. You explain the things that seem to make no sense in the logical-focused, hi-tech world we inhabit. I share them with friends from 20s to 40s and hope they share them with their wider circle. Thank you for your wonderful work Dr N.

  8. Cat
    7 years ago

    I am a Wiccan High Priestess and I celebrate both the full moon and the new moon, usually with a ritual (known as an esbat). To Wiccans, the new moon is the first sliver of the waxing crescent while the astronomical new moon (when the moon cannot be seen) is called the dark moon. But we also use all phases of the moon for ritual and magic. When the moon is waxing is the time to do magic related to bringing something desired into your life; when it is waning is the time to do magic related to releasing something or banishing it.

  9. Nancy Gutierrez
    7 years ago

    I am a 64 years old woman and always have felt the moon as a presence. Living on my own 8 years ago, I have been with the moon as my only companion when I get home after work. But one thing have been specialy important is the light and splendor specially when the electrical power is off. My vision improves tremendously and the urinary system too. Pretty amazing eh?. Thanks for all your support on women¨s health.

  10. Maria
    7 years ago

    Thank you dr. Christiane Northrup I like your very useful and great knowledge , you inspired me .

  11. Lynda
    7 years ago

    My nearly 9 year old grand daughter is very in tune with the moon. She was born with a tumour on her larynx and has had 52 operations to try and remove this. It has finally happened. But there is something very special about this wee girl. She is so spiritual and mature for her 8.5 years. At the age of 3 she was at my house on a full moon. She took my crystals out to energise them under the moon as we have taught her. But then she did the strangest yet amazing thing next. She found my daughters little double drum and took it outside and did this stunning dance under the moonlight. We had never seen it before let alone talked of it. She said she wanted to share the full moon with the world and that was what her dance was. We were all getting shudders down our spines. This little girl is an old soul and has taught myself and her mum (my daughter) so much about life and living!

    1. Ellen
      7 years ago


    2. Karolina
      7 years ago

      Lynda I have tears in my eyes after reading your comment! so beautiful!

  12. Brittany
    7 years ago

    Thank you for all of this wonderful information! I’m curious how to sync cycle with bleeding at the new moon. I currently bleed just before, or with the full moon.

    1. Kathryn Wells
      7 years ago

      Hi Brittany,
      Dr. Northrup actually writes about that in another blog post: The Wisdom of the Menstrual Cycle. See below:

      In one study of nearly two thousand women with irregular menstrual cycles, more than half of the subjects achieved regular menstrual cycles of twenty-nine days’ length by sleeping with a light on near their beds during the three days around ovulation.2

  13. Elisabeth
    7 years ago

    I just had a vivid d dream last night that I was menstruating and blood was spilling out from me. My thought was that I had not had a period in three years (which is true) and why is this happening? Does anyone know what this dream might be symbolizing?

    1. Sophia
      7 years ago

      Hi Elisabeth,
      My first instinct is that this is a very exciting dream. I would associate the “return of flow” as a sign that your life is getting easier especially because you have a renewed sense of creativity and youthful enthusiasm. Metaphorically speaking, you are still fertile and your feminine essence and power are eager to be expressed. I get such a good vibe from this dream. But how do you feel? What were your emotional reactions at the time of the dream? How your dreams make you feel, is a clue to what they mean. Also, you are the “mother of the dream” because the dream originates from you. You will bring personal associations to the dream that only you can know. So, while I am excited about your dream an perceive it as a beautiful blessing, perhaps you felt awful when you woke up and remembered a miscarriage you had and never grieved and this dream is asking you to grieve your losses before beginning anew. See what I mean? Aren’t dreams fascinating? And your post is great because you bring up another potent aspect of the moon which is its long term association with our emotions, the unconscious, the mystery of life, the Divine Feminine, and dreams. Cool share, Elisabeth. Hope my reply was helpful, but remember, you are your own authority. Ultimately, no one knows what your dream means, except you. Trust yourself. If you spend time with your dreams, they will reveal themselves to you.

      1. Elisabeth
        7 years ago

        Thank you so much! This is fabulous! i have been steeping into my creativity in a big way and just finished an on-line course called Feminine Power that was amazing. I love your explanation and will spend time considering the message. Thank you again for such a thoughtful response!

        1. Sophia
          7 years ago

          I am so excited for you, Elisabeth! Wow! I’m glad I took the time to reply. Enjoy the beautiful gift of your feminine power and creativity. I’m delighted that my reply was helpful.

          1. Elisabeth
            7 years ago

            Sophia I was just re-reading your reply and realized that what you said about grieving your losses before starting anew rings true as well. I just dropped my son off at college this past weekend. He is my oldest and a freshman. Letting go of my children is difficult even though I am re-creating myself. I need to acknowledge that fully.Thank you again for sharing your gift!

  14. Elizabeth
    7 years ago

    I am so excited to see you, as a physician, actually acknowledge how miserable you can feel during the new moon. I first noticed it years ago when I was still menstruating and had terrible PMS. Most doctors told me it was in my head, etc. Whatever, I learned how to deal with it myself (it nearly killed me). Even now that I am post menopausal I can feel my physical response to the new moon. Thank you for acknowledging this.

    In our office we keep a copy of the lunar calendar. We have learned to check that calendar out when things are off.

    I love your information. It is so helpful. Sincerely

  15. Erin
    7 years ago

    My menstrual cycles have always been shorter than average, 23-25 days. I’ve also experienced a lot of frustration not being able to establish routines and rhythms in my life. My efforts seem constantly foiled! What does a shorter menstrual cycle mean for someone like me, when lunar cycles are so constant? Is there a way to be “in sync” in spite of being “off”?

    1. Kathryn Wells
      7 years ago

      Hi Erin,
      Dr. Northrup actually writes about that in another blog post: The Wisdom of the Menstrual Cycle. See below:

      In one study of nearly two thousand women with irregular menstrual cycles, more than half of the subjects achieved regular menstrual cycles of twenty-nine days’ length by sleeping with a light on near their beds during the three days around ovulation.2

      Read the whole article…it’s fascinating!

  16. JO
    7 years ago

    You have so much interesting information to share. I’m currently reading your book, “How To Make Life Easy”, and am totally enjoying it and learning lots. Thank you. JO

  17. Donatella
    7 years ago

    Thank you for all this, I have really appreciated it. It is our lunar nature that makes us women (but also the feminine part in men) more inclined to changing and accepting change as being in tune with life itself. Donatella

  18. Karen
    7 years ago

    How does the lunar cycle affect a 68 year old?

  19. Trish
    7 years ago

    I like this and enjoyed the detailed explanation of all the phases of the moon and how we are connected to them. Thank you.

  20. Mary
    7 years ago

    Dr. Northrup, thank you for this blog. I have been watching this power in my life for a while now. I understand that most women follow this pattern of menstration at the new moon and ovulation at the full moon. What is the significance if the pattern is opposite? Meaning, if you menstrate at the new moon and ovulate at the full moon, what is the significance?

    1. Sophia
      7 years ago

      Hi Mary,
      I hope Dr. Northrup will answer this post, but since she hasn’t yet, I decided to chime in. For a few years, I menstruated at the full moon and not the new. During this time, I had the most painful periods of my life. I was bed ridden for the first two days of my cycle. It was torture. What made a huge difference for me was acupuncture. I bleed with the new moon now and my cycles are much less painful. If you bleed on the full moon, does it hurt like hell or do you feel powerful and energized? I read an article online somewhere that said women who bleed on the full moon were historically viewed as independent women who renounced the conventional path. Sometimes, like witches, they were feared. That sounds a little intense, but perhaps there is a clue in there. I think another way of looking at this is asking some key questions which might illuminate the situation. Am I out of sync with other women? Does my life feel like it is going backwards instead of forwards? Do I see myself as a lone wolf? Am I out of harmony with nature? Am I out of harmony with myself? Do I have profound grief around the issues of feminity, sexuality, and creative power? Do I feel the need to rebel against the person I am expected to be? I suspect that the reasons for bleeding on the full moon instead of the new moon vary for each woman. If it isn’t painful, I would embrace it. Who says you have to be like everyone else? But if it is painful, it invites you to get very curious about your life and everything that isn’t working for you. Journaling can bring loads of interesting insights to the surface. For me, I discovered that my menstrual imbalance was related to a repressed sexual trauma. Our bodies are brilliant and they will do what is necessary to get our attention when we would rather not deal with certain things. Just some things to think about. Hope you find the answer that is right for you.
      Best wishes,

      1. Kristin
        7 years ago

        Hello Dr. Northrup! I share the same question with Mary and Sophia. I bleed with the new moon and ovulate with the full moon, I have since I started menstruating and even conceived my daughter on this cycle. Can you explain the significance of this “opposite” cycle and if it is something that I should look to change?
        I too have read these “Red Moon Cycle” women are different and are independent (even viewed as witches). But am very curious as to what an expert has to say about it.

        1. Elisabetta
          7 years ago

          If you have ovulation in full moon (than you bleed in new moon) you are fertile and you can become pregnant. If you have ovulation in new moon (i.e. you bleed in full moon) you cannot become pregnant. It is quite common that, in a life span, this correspondence between ovulation and moon cycle changes depending on a lot of things. For example, it is quite common that if a woman has a relationship with a man that she “knows” will not be a good father, her ovulation will be in the new moon: in this way she cannot become pregnant. (I’m sorry for my bad English: I hope everything is clear)

  21. Viv Katahena
    7 years ago

    Dear Dr Northrup, thank you very much for this information. I grew up with my grandmother, who based most, if not all her activities on the lunar cycle. This included planting crops, cutting her hair, etc. In fact, with the former, some of our neighbours never understood how she always had bumper harvests whilst they couldn’t! Having seen, at first hand, the wisdom of living under the influence of the lunar cycle, I’ve tried to make this part of my life. I’ve read quite a few books, but none has been as explanatory as this article.
    PS: Do you have any intention of publishing a book on this? I’ve got a few of your books and would, no doubt, be among the first in line to buy this because I’m certain it’ll be as informative and easy to read as your other books, hence I’m hoping you’d do so. Many thanks for all the marvellous work you’ve been doing, for women and the world at large!
    With thanks and gratitude, Viv Katahena.

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