06/01/2026
Has this ever happened to you? Drop a YES in the comments.
The habits and routines that used to work consistently have stopped holding. Not because your discipline changed. Because something underneath changed.
A longitudinal study from the University of Zurich tracked 127 perimenopausal women over 13 months and found that estradiol and progesterone do not decline steadily during perimenopause. They fluctuate unpredictably. Week to week. Sometimes day to day. Research also found these fluctuations may disrupt the neurotransmitters associated with mood, motivation, and the capacity to sustain consistent behavior.
This matters because a behavioral routine, your sleep schedule, your nutrition habits, your exercise pattern, was built for a stable hormonal baseline. When that baseline becomes variable the routine that held consistently may begin to break down inconsistently. Not because your discipline changed. Because the physiological signals driving your capacity for consistency changed underneath it.
This is not failure. This is a design mismatch. And it is one of the patterns we monitor weekly with every client. When we identify which signals are shifting in a given week and address them directly, consistency starts to return.
I covered it in 90 seconds.
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Calgary + remote | 20 years clinical experience