Dr. Mache Seibel is an international health expert and leading authority on women’s wellness and menopause.

When his wife had surgery that threw her into early menopause only months after a study incorrectly reported that estrogen caused breast cancer, her doctors were reluctant to treat her with hormone therapy. He HAD to find out the truth.

As a result, Dr. Mache transitioned from one of the leading fertility experts to researching estrogen and menopause. He’s passionate about helping women around the world get the information they need to “figure it out” so they don’t have to “tough it out.”

Dr. Mache’s philosophy is to take care of the SUM of you and not just SOME of you™. That includes providing up-to-the-second health information with a holistic approach. His latest book, The Estrogen Fix, uncovers the window of opportunity to begin estrogen to lower the risk of disease and optimize relief of symptoms. Find out more at

Dr. Mache focuses on three areas: 

  • Speaking to women’s groups and organizations
  • Health and lifestyle coaching for women experiencing menopause who want to sort though their diagnostic and treatment options
  • Consulting to businesses about product positioning and launch for women’s health products and the impact of menopause on their workforce and how to mitigate that impact

For more information contact Dr. Mache.

Achievements & Accolades

  • 2017 – Beth Israel Deaconess Medical Center and Harvard Medical School faculty
  • 2014 – Gates Foundation – Grand Challenges Explorations 
  • 2013 Media Award – North American Menopause Society
  • Founder, The Hot Years: My Menopause Magazine
  • Host for PBS and NYC TV episodes, frequent media expert
  • Repeatedly voted into Best Doctors in America 1998 to present
  • Past Editor-in-Chief of the medical journal Sexuality, Reproduction & Menopause
  • Distinguished Alumnus Award, the University of Texas Medical Branch’s highest honor – 2008
  • Multiple national awards for research, writing, music writing and patient education
  • Professor, University of Massachusetts Medical School 2004-present
  • Director, Complicated Menopause Program, University of Massachusetts Medical School 2004-2011
  • Harvard Medical School – 1979-1998
  • Founder of HealthRock®, reshaping health education with health songs and entertainment
  • Past Medical Director, Inverness Medical Innovations (now Alere)
  • Corporate Consultant and Corporate Health Expert Nationally and Internationally
  • Author/editor 15 books, over 200 scientific articles,
  • American Cancer Society New England Division Medical Advisory Network
  • Advisory board of Dr. Mehmet Oz’s HealthCorps initiative to fight childhood obesity
  • Nationally known guest speaker, keynote speaker, health and wellness advocate

“Dr. Mache’s meticulous review of the most recent scientific evidence about menopausal hormones will help the reader think about the extra benefits that result from taking estrogen in the right way and at the right time. Clearly presented, this book shows that estrogen therapy improves quality of life including workability, prevents disease, and can be life-saving.

Philip M. Sarrel, MD
Professor Emeritus of Obstetrics
Reproductive Sciences and Professor Emeritus of Psychiatry
Yale University School of Medicine