Biorythms (Biorhythms)

What is their Importance for Menopause Symptoms?


Biorythms (which is actually spelled biorhythms) refers to the way all life-forms respond to the regular cycles of the day, sun, moon, and the seasons.


The most common of those biorythms is the circadian (daily) cycle which is found in most life-forms. And every woman is familiar with
the lunar cycle which is 28 days, just as our menstrual cycle (well, kind of).

Women understand intuitively that our body follows its own rhythm. We can take advantage of biorhythms to maximize the effect of our menopause treatments:

  • For example, take your estrogen or phytoestrogen at night to get the most benefit. Not only because night sweats can wake you up, but also because all cholesterol production happens at night (All human sex hormones are in the chain of the cholesterol metabolism).
  • The benefits of exercise can also be timed for optimal effect. Exercising in the afternoon or early evening has the biggest effect on endurance.
  • Consider to keep a journal of your menopause symptoms for a while
  • Write down what time of day the symptom occurred, a description and level of intensity, how long it lasted (i.e. hot flashes), your activity at the time, things you ate and drank etc.
  • Also keep track of all medications and supplements and when you were taking them.


biorhythm_lifecycleMore and more doctors take biorythms into consideration when prescribing medications, because even existing medications can benefit by being taken at the optimal time.

New medications are also being developed to get the most benefit from either our body-clock or the specific symptom or disease rhythm.

Women Know Better – The Body is Not in Balance During Menopause

Traditional medicine has long ignored that internal clocks (chronobiology) play a role in our health. The thinking was that our body is trying to maintain a system of Homeostasis - or balance. The systems in our body were thought to function best within a “normal” range. (i.e. blood pressure). Even the prescription regimen is often following this thinking: take 1 pill every 4 hours.

Another example for homeostasis is body temperature. When our body temperature goes outside its thermo-neutral zone, the temperature control system in our brain activates the neurotransmitters to bring it back into the normal range. At the extremes, we perspire or shiver. (Sounds like a hotflashfollowed by chills – right?)

Now scientists begin to consider that this system of balance, or homeostasis, might exist together with a circadian biorhythm. One system is maintaining the regular functions of the body, while the other prepares it for the normal changes of everyday life (i.e. adjusting body functions for a rest period at night).

There is a lot of research still to be done to find out more about biorythms and how it might affect the way we are taking hormones and menopause supplements.

Another Kind of Biorhythm – Life Cycles

The term “Biorhythm” can also refer to the belief that we are influenced by three fundamental biorhythm cycles that begin at birth. Those three cycles, the physical, emotional, and intellectual cycle, follow their own rhythm. Each cycle describes your energy levels and function at any given day. And together they determine how you feel and function on a given day.


  • The intellectual biorhythm lasts for 33 days and relates to your mental capabilities and ability to solve problems.
  • The emotional biorhythm last for 28 days (just like the lunar cycle) and relates to your emotional stability or stress.
  • The physical biorhythm lasts for 23 days and is related to your health, endurance and stamina.
  • Some people also look at the 4 secondary rhythms:
  • Spiritual (53 days)
  • Awareness (48 days)
  • Aesthetic (43 days)
  • Intuition (38 days)

The belief is that if you monitor the highs and lows of these cycles, and adjust your life accordingly, you can improve the quality of your life.

However, scientists believe that this is “pseudo-science” and belongs into the realm of astronomy.

Here you can calculate your own bio-rhythm. The calculator will open in a new window. So just click the back browser button to come back here.

Do your biorhythms coincide with specific spouts of hot flashes? Is your stress level higher on certain days? What about your mood swings?

Do you experience any other specific menopause symptom?

Calculate your biorhythm and send us the results. We’ll get our own “non=scientific” survey together. After all, science does not have all the answers!

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