As women around the world delay motherhood due to education, careers, and changing lifestyles, scientists are searching for innovative ways to extend female fertility without compromising health.
One of the researchers at the forefront of this work is Dr. Hongmei Wang, a renowned reproductive biologist and professor at China’s State Key Laboratory of Stem Cell and Reproductive Biology.
Her latest research explores a compelling question: Could reducing the number of menstrual cycles throughout a woman’s life help preserve her ovarian reserve and extend her reproductive years?
The idea has sparked global interest because it challenges long-held assumptions about female fertility while opening new possibilities for reproductive medicine.
A New Way of Thinking About Fertility
Women are born with all the eggs they will ever have. Unlike men, who continuously produce sperm, a woman’s egg supply gradually declines from birth until menopause.
Dr. Wang’s research suggests that reducing ovulation,from approximately 12 menstrual cycles per year to just four,could slow the depletion of ovarian follicles, potentially allowing women to remain fertile for longer.
The hypothesis is based on an evolutionary comparison.
According to Dr. Wang, women throughout much of human history experienced far fewer menstrual cycles than modern women because they spent more time pregnant and breastfeeding.
Historically, women had approximately 100 menstrual cycles during their lifetime, whereas today many experience between 400 and 500 cycles due to later pregnancies, fewer children, and shorter breastfeeding periods.
If ovulation could safely be reduced, researchers believe more eggs might be preserved for later reproductive years.
Is It Scientifically Possible?
The concept has scientific merit,but it remains a hypothesis under active investigation rather than a proven fertility treatment.
Many experts agree that ovulation contributes to the gradual depletion of ovarian follicles. Modern hormonal contraceptives already suppress ovulation for many women, demonstrating that ovulation can be safely reduced in many cases.
However, preserving eggs is only one part of reproductive aging.
Egg quality naturally declines with age because of changes in chromosomes, DNA integrity, and mitochondrial function. Even if more eggs remain, they may not necessarily maintain the same reproductive potential.
Scientists therefore caution that having more eggs does not automatically translate into higher fertility later in life.
The Estrogen Challenge
One of the biggest obstacles highlighted by Dr. Wang involves estrogen.
Speaking to El País, she explained:
“When we stop ovulation, we save more eggs, but we also stop the body from making estrogen, and that molecule is absolutely vital for health.”
Estrogen is essential for numerous body functions, including:
- Maintaining bone strength
- Supporting cardiovascular health
- Regulating brain function
- Protecting reproductive tissues
- Supporting metabolism
Completely suppressing estrogen over many years could increase risks such as osteoporosis, heart disease, and other health complications.
For this reason, researchers are exploring ways to reduce ovarian aging without eliminating the protective effects of estrogen.
Why This Research Matters
The study arrives at a critical moment.
Countries including China, Japan, South Korea, and many European nations are experiencing declining birth rates alongside rapidly aging populations.
Many women today choose to have children later in life because of:
- Higher education
- Career development
- Financial planning
- Delayed marriage
- Access to reproductive choices
Finding safe methods to preserve fertility could provide women with greater reproductive flexibility while reducing age-related infertility.
A Leader in Stem Cell and Reproductive Science
Dr. Hongmei Wang is internationally recognized for her work in developmental and reproductive biology.
Her laboratory investigates:
- Early embryo development
- Placental biology
- Human and non-human primate embryogenesis
- Stem cell biology
- Pregnancy health
- Advanced in vitro developmental models
Her research aims to improve understanding of pregnancy complications while developing new approaches to reproductive medicine.
In recognition of her scientific leadership, the International Society for Stem Cell Research (ISSCR) appointed Dr. Wang as an Associate Editor of Stem Cell Reports in April 2026.
ISSCR Editor-in-Chief Dr. Janet Rossant praised Dr. Wang’s contributions to developmental biology and reproductive science, noting that her expertise would strengthen the journal’s global scientific leadership.
Beyond research, Dr. Wang is also widely respected as a mentor, training the next generation of scientists in stem cell and reproductive biology.
What Comes Next?
Although the idea of extending fertility by reducing ovulation is promising, experts stress that the research remains experimental.
Several important questions still need answers:
- Can ovarian aging truly be slowed?
- Will preserved eggs remain healthy enough for pregnancy?
- How can estrogen levels be maintained safely?
- What are the long-term health effects?
- Which women would benefit most?
These questions will require years of clinical research before any new therapies become available.
A New Frontier in Women’s Reproductive Health
Dr. Hongmei Wang’s work represents an exciting shift in fertility research,from treating infertility after it occurs to preserving reproductive potential before fertility declines.
While the science is still evolving, her research highlights the growing role of stem cell biology and reproductive medicine in addressing one of women’s most pressing health challenges.
If future studies confirm that ovarian aging can be safely slowed without compromising overall health, the findings could reshape fertility care and give millions of women more reproductive options in the years ahead.
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