Centre for Menstrual Cycle and Ovulation Research

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The UBC Centre for Menstrual Cycle and Ovulation Research (UBC-CeMCOR) is a research centre focusing on scientifically reframing women’s menstrual cycles, ovulation and lifecycle with a woman’s perspective.

08/11/2026

PCOS has a new name—but has our understanding changed?

In her latest article, Re-naming PCOS Without Re-framing PMOS, Dr. Jerilynn Prior reflects on the recent change from Polycystic O***y Syndrome (PCOS) to Polyendocrine Metabolic Ovarian Syndrome (PMOS) and asks whether this shift truly addresses the underlying physiology of the condition.

Drawing on decades of clinical experience and research, Dr. Prior argues that ovulation and progesterone remain central to understanding this common condition and that the conversation around treatment needs to move beyond managing symptoms alone.

Read the full article on our website: https://cemcor.ubc.ca/news/re-naming-pcos-without-re-framing-pmos/

04/30/2026

Night sweats. Poor sleep. Hot flushes. 😰

In her latest article, Dr. Jerilynn Prior examines how these common but often dismissed symptoms may be connected—not just to hormonal changes, but to long-term heart health.

Emerging research shows that sleep disruption from hot flushes may be linked to increased cardiovascular risk, highlighting why these symptoms deserve attention—not dismissal.

Read the full article on the CeMCOR website: https://cemcor.ubc.ca/news/night-sweats-sleep-problems-hot-flushes-and-heart-disease-april-2026-newsletter/

03/08/2026

✨ Celebrating a pioneer in women’s health science ✨

This International Women’s Day, CeMCOR founder Dr. Jerilynn Prior highlights the remarkable legacy of Dr. Eleanor Hill Venning, a Canadian scientist whose groundbreaking work in the 1930s made it possible to measure progesterone in urine for the first time.

Her discovery transformed how researchers understand ovulation, hormones, and the menstrual cycle—and continues to shape modern tools and studies today.

Read Dr. Prior’s reflections on Dr. Venning’s pioneering contributions and why her work still matters: https://cemcor.ubc.ca/news/celebration-of-dr-eleanor-venning-on-international-womens-day-2026-march-newsletter/

03/07/2026

📣 In this latest article, Dr. Jerilynn Prior explores the idea of breast self-knowledge—becoming familiar with what is normal for your body so you can recognize changes early.

Developing awareness of your breasts can help you notice differences in texture, tenderness, or new lumps and seek care when something doesn’t feel right.

Learning what’s normal for you is an important step toward understanding your health.

Read the full article on our website — https://cemcor.ubc.ca/news/breast-self-knowledge/

02/09/2026

Severe period cramps shouldn’t be something you just “push through”

UBC is urgently recruiting women+ aged 16-35 for a research study on managing painful menstrual cramps — and participation comes with real benefits!

✨Why Join?
• Help improve treatment options for menstrual pain
• Learn more about your own cycle
• Receive 90 FREE ibuprofen tablets
• Only 16 days total participation
• Just 2 in-person visits near Vancouver General Hospital

👤 You may be eligible if you:
✅ Are 16-35 years old
✅ Have regular menstrual cycles
✅ Experience moderate to severe menstrual cramps
✅ Live in Metro Vancouver

🙋‍♀️ Interested in Participating?
📞 Call 604-875-5960 or 📧 Email: [email protected]

👉 Know a teen, student, or young adult with painful periods? Please share this post with them.
🔗 Learn more: https://cemcor.ubc.ca/menstrual-cramps-ibuprofen-therapy-study/

Principal Investigator: Dr. Jerilynn C. Prior, MD – UBC CeMCOR

Please note: if you choose to “like” or “follow” this post, you may be publicly associated with the study, which could impact your privacy.

02/08/2026

New information says that progesterone decreases human breast cancer cell proliferation (https://www.nature.com/articles/s43018-025-01087-x)

In her latest article, Dr. Jerilynn Prior breaks down how natural progesterone in ovulatory cycles is likely protective—especially in comparison to patterns of chronic anovulatoon. This important insight adds to our understanding of hormonal health and long-term wellbeing.

➡️ Read more about the science and what it means for menstrual and reproductive health: https://cemcor.ubc.ca/news/progesterone-in-ovulatory-cycles-likely-prevents-breast-cancer-january-2025-newsletter/

02/07/2026

New Podcast with Dr. Jerilynn Prior — The Vulvalution
Hosted by two graduate trainees in Women’s Health at UBC

🎙️Episode 4 – The Menstrual Cycle: What You Really Need to Know
What actually is the menstrual cycle—and does it matter?

In this episode of The Vulvalution, Dr. Prior joins hosts Mathilde & Sabrina to break down hormones, ovulation, and the menstrual cycle from a whole-body health perspective. Together, they bust common myths, explain why estrogen and progesterone work as a team, and walk through a full cycle—covering cramps, PMS, ovulation, and why your cycle is about much more than reproduction.

If you’ve ever been told “it’s just your hormones”, this episode is for you.

Listen to the full episode on YouTube, Spotify or Apple Podcasts. https://cemcor.ubc.ca/resources/the-vulvalution-podcast-ep-4-the-menstrual-cycle-what-you-really-need-to-know-with-dr-jerilynn-prior/

12/10/2025

🎄✨ This holiday season, empower the women in your life with the gift of knowledge and wellness through ‘Estrogen’s Storm Season’ – Dr. Jerilynn Prior tells the story of women in perimenopause through a unique blend of storytelling and scientific fact.

Why choose this book? Not only does it offer invaluable insights, but 100% of the sales contribute to CeMCOR’s research. Your purchase directly supports the future of CeMCOR, fostering essential endocrine research and leadership in women’s health.

🎁 Give a gift that keeps on giving – to your loved ones and to the advancement of women’s well-being.

Grab your copy now and be part of a meaningful journey toward a healthier and more informed future!

🔗 Buy the ESS Book on Amazon (link in bio) or directly through our website: www.cemcor.ubc.ca/resources/estrogens-storm-season/

12/05/2025

🔔 Newsletter Alert!

Are you feeling overwhelmed by all the information (and misinformation) about menopause? You’re not alone. In her latest newsletter, Dr. Prior unpacks what really matters — evidence, clarity, and compassionate guidance.

Inside this issue:
- What’s true (and what isn’t) about common menopause myths
- How to navigate hormonal changes and take control of your cycle health
- Practical tips and hope for this next chapter

Read the full article now ➡️ https://cemcor.ubc.ca/news/clearing-menopause-confusion/

09/11/2025

👏 We’re proud to share that CeMCOR research associates Sonia Shirin and Dr. Nahid Shirazian presented their studies at the UBC Division of Endocrinology 2025 Research Fest last week!

👉 Sonia shared findings on ‘Attitudes about Combined Hormonal Contraceptives as Treatment for Androgeni PCOS’ from an international survey conducted back jn 2021.

👉 Dr. Shirazian presented on the relationships between self-worth, menstrual cycles, and ovulation in healthy premenopausal women—published this August in PLOS One.

You can read more about these & other studies—and even join a CeMCOR study as a participant—on our website ➡️ Link in Bio 🔗

Address

2775 Laurel Street (Room 4111/4th Floor)
Vancouver, BC
V5Z1M9

Telephone

+16048755927

Website

http://www.cemcor.ubc.ca/

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