Progesterone vs. Estrogen | Dr. Jerilynn Prior

Fempower Health

Progesterone vs. Estrogen | Dr. Jerilynn Prior

October 25, 2021

Progesterone vs. Estrogen | Dr. Jerilynn Prior

Until recently, all we ever heard about was the power of estrogen (good or bad).  We now know both are incredibly critical.  Dr. Jerilynn Prior, of the Centre for Menstrual Cycle and Ovulation Research (CeMCOR), is a Professor of Endocrinology and Metabolism at the University of British Columbia, with 40 years experience in women’s health.  

In this episode, Dr. Prior covers:

  • The role of estrogen and progesterone in bone health, breast and endometrial cancer risk, fertility, weight, and heart health
  • Why hormone balance is important regardless of whether you want to get pregnant
  • The confusion over whether and how stress impacts our reproductive health
  • Why it is hard for women to be aware of some of this research

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**The information shared by Fempower Health is for information only and is not medical advice.  Always talk to your doctor before making health-related decisions. 

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About Dr. Jerilynn Prior

Jerilynn C. Prior BA, MD, FRCPC investigates women’s menstrual cycles, ovulatory disturbances within regular cycles with osteoporosis, cardiovascular disease and breast cancer and endometrial cancer risks. She also studies the hormonal and experience changes in perimenopause and treatment of perimenopausal and menopausal hot flushes with progesterone. 

She is the 2019 recipient of the Michael Smith Foundation for Health Research Aubrey J. Tingle Prize awarded to a “BC clinician scientist whose work in health research is internationally recognized”. She is Scientific Director of the Centre for Menstrual Cycle and Ovulation Research (CeMCOR, since 2002) with its website ( providing practical evidence-based information through a mean of 3,000 page-views/day.  She has led the British Columbia Centre of the population-based Canadian Multicentre Osteoporosis Study (CaMos) since 1994. In addition to authoring over 200 peer-reviewed papers (H Index 65), Dr. Prior is the author of the award-winning book, Estrogen’s Storm Season: Stories of Perimenopause (2005, 2nd ed. 2018), a novel written to inform/empower women with perimenopause information.

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