The New Perimenopause: An Evidence-Based Guide to Surviving the Zone of Chaos and Feeling Like Yourself Again

Mary Claire Haver

The New Perimenopause: An Evidence-Based Guide to Surviving the Zone of Chaos and Feeling Like Yourself Again

Mary Claire Haver
66 pages2-hour read
Nonfiction
Book
Adult
Published in 2026

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Character List

Meet the key characters, with insights into their roles, motivations, and relationships—spoiler-free.

Major Characters

Dr. Haver is a board-certified obstetrician-gynecologist and the founder of The ’Pause Wellness clinic. She acts as both clinician and patient, using her medical background and personal experience to explain the systemic biological changes of perimenopause. She actively challenges outdated medical guidelines while prioritizing evidence-based strategies for midlife women's health.

Key Relationships

Cited Orthopedic Expert of Dr. Vonda J. Wright

Cited Neuroscientific Expert of Dr. Lisa Mosconi

Colleague and Allied Advocate of Dr. Rachel S. Rubin

Consulted Sleep Expert of Dr. Andrea H. Matsumura

Representative Patient Case of Amy

Dr. Wright is a double-board-certified orthopedic sports surgeon and medical researcher. She applies a performance medicine framework to menopause, focusing on how estrogen depletion impacts musculoskeletal health and connective tissues. Her work establishes a unified clinical explanation for the widespread pain and functional decline that midlife women frequently experience.

Key Relationships

Cited Expert of Dr. Mary Claire Haver

Dr. Mosconi is a prominent neuroscientist and the director of the Women’s Brain Initiative at Weill Cornell Medicine. Her neuroimaging research forms the scientific foundation for the book's brain-first model of perimenopause. She demonstrates how estrogen dynamics directly affect brain structure, mood regulation, and cognitive health.

Key Relationships

Cited Neuroscientific Expert of Dr. Mary Claire Haver

Supporting Characters

Dr. Crawford is a double-board-certified reproductive endocrinologist and infertility specialist. She provides guidance on late-reproductive planning, ovarian reserve evaluation, and the intersection of fertility treatments with perimenopause. She emphasizes the importance of hormone-aware care for women pursuing pregnancy later in life.

Key Relationships

Cited Fertility Expert of Dr. Mary Claire Haver

Dr. Rubin is a board-certified urologist with fellowship training in sexual medicine. She provides an unapologetic, anatomy-literate approach to women's sexual health, focusing on the genitourinary syndrome of menopause and the use of testosterone. Her public education efforts help dismantle myths surrounding female desire.

Key Relationships

Allied Advocate of Dr. Mary Claire Haver

Dr. Streicher is a clinical professor and the founding medical director of the Northwestern Medicine Center for Sexual Medicine and Menopause. She models comprehensive care pathways and provides practical, clinic-ready strategies for addressing painful intercourse and other sexual-health concerns.

Key Relationships

Cited Clinical Expert of Dr. Mary Claire Haver

Dr. Nagoski is a sex educator and researcher holding a PhD in health behavior. Her frameworks for sexual well-being, particularly the concept of responsive desire, help normalize midlife libido changes and remove shame from clinical conversations about intimacy.

Key Relationships

Cited Behavioral Expert of Dr. Mary Claire Haver

Dr. Bluming is an oncologist and co-author of *Estrogen Matters*. His work challenges the early 2000s backlash against menopause hormone therapy, using clinical data to advocate for a risk-balanced, benefits-inclusive approach to estrogen treatment.

Key Relationships

Cited Expert of Dr. Mary Claire Haver

Co-Author of Dr. Carol Tavris

Dr. Tavris is a social psychologist who applies communication science to the public debate over menopause treatments. Through her collaborative work, she helps dismantle the fear surrounding estrogen therapy, encouraging individualized and accurate patient care.

Key Relationships

Cited Psychological Expert of Dr. Mary Claire Haver

Co-Author of Dr. Avrum Bluming

Dr. Casperson is a board-certified urologist and podcast host. She works to normalize conversations about women’s sexual health, providing plain-spoken, anatomy-based education that dismantles clinical stigma surrounding libido and pleasure.

Key Relationships

Cited Urological Expert of Dr. Mary Claire Haver

Dr. Matsumura is an internist and fellowship-trained sleep medicine specialist. She consults on the specific ways perimenopause remodels sleep architecture, advocating for targeted, hormone-aware strategies rather than generic sedatives.

Key Relationships

Consulted Sleep Expert of Dr. Mary Claire Haver

Amy is a 43-year-old woman whose medical journey represents the standard, frustrating experience of perimenopause. Despite maintaining a strict diet, she faces repeated dismissals from physicians, inappropriate prescriptions, and a hysterectomy before finally receiving an accurate diagnosis from a telemedicine provider.

Key Relationships

Patient Case Study of Dr. Mary Claire Haver

Shelly C. is an OB-GYN who experiences the very symptoms she treats, yet faces dismissal from multiple specialists due to her age and normal lab results. Her case illustrates that even medical professionals are subjected to medical gaslighting regarding perimenopause.

Key Relationships

Case Study Subject of Dr. Mary Claire Haver

Caroline H. is a patient who suffers from severe, hormone-driven insomnia. Her physicians dismiss her physical symptoms, blaming her lifestyle choices and diet, causing her to feel completely unsupported during a challenging physical transition.

Key Relationships

Case Study Subject of Dr. Mary Claire Haver

Lilly R. is a Latina patient whose gynecologist dismisses her concerns based on demographic generalizations about when Hispanic women enter perimenopause. She advocates for herself, eventually finding a specialist who prescribes the hormone therapy she needs to feel like herself again.

Key Relationships

Case Study Subject of Dr. Mary Claire Haver

Michelle M. is a patient nearing 43 who experiences an overwhelming cascade of symptoms that she describes as a heightened puberty. Her story illustrates the lack of navigational guidance provided to midlife women facing sudden, severe physical changes.

Key Relationships

Case Study Subject of Dr. Mary Claire Haver