Ep. 36: My Breast Cancer Story: Six Longevity Pillars Connecting Cancer & Heart Disease — with Dr. Regina Druz, MD, MBA, FACC, FMCP-M, integrative cardiologist

In the first episode of 2026, Dr. Regina Druz flies solo to share something deeply personal: in December 2023, a walk-in mammogram at a local mall led to a diagnosis of early-stage breast cancer — despite no family history, no genetic predisposition, and none of the classic risk factors. In this candid, survivorship-centered episode, she uses her own story to illuminate a connection most women are never told about: heart disease and breast cancer share the same underlying biology, especially across the perimenopausal and menopausal transition. She walks through six mechanistic ‘pillars’ — estrogen shifts, chronic inflammation, oxidative stress, immune dysregulation, insulin resistance, and environmental toxins — and explains how each can be measured and addressed. This is an educational account of one physician’s journey, not medical advice, and not a treatment protocol; cancer care belongs with a qualified oncology team.

Watch on YouTube: A video version of this episode is available on the Own Your Heart Health YouTube channel. Subscribe to be notified of new episodes.

Episode Chapters

[00:00] Welcome & Flying Solo for 2026
[02:00] The Mall Mammogram (December 2023)
[05:30] Diagnosis: DCIS & Early Invasive Breast Cancer
[09:00] Why a Cardiologist Is Telling This Story
[14:30] The Critical Window: Perimenopause & Menopause
[19:00] Why Standard Screening Misses Women (SMuRFs)
[22:30] Pillar 1 — Estrogen: Depletion, Dominance & HRT
[31:30] Pillars 2–4 — Inflammation, Oxidative Stress & Immunity (the ‘Bermuda Triangle’)
[40:00] Pillar 5 — Insulin Resistance, Visceral Fat & the Menopausal Heart
[47:00] Pillar 6 — Environmental Toxins & Detox
[50:30] The Window of Opportunity & Unified Prevention
[56:30] Survivorship, Gratitude & Looking Ahead to 2026

Transcript

[00:00] Welcome & Flying Solo for 2026

Dr. Regina Druz (00:02): Welcome to Own Your Heart Health. I’m Dr. Regina Druz, your holistic cardiologist. This week we’ll dive into common heart health concerns, uncovering root causes and unpacking scientific discoveries and controversies. The information provided does not constitute medical advice. Please contact your healthcare practitioner before making any changes that may impact your health.

Dr. Regina Druz (00:40): Happy New Year, everybody. It’s the beginning of 2026, and for this first episode of the year I’m flying solo. I want us to zoom in on some truly critical topics for health, wellness, and longevity, and to set the tone for 2026. I’m sure many of you are making plans to up-level your health — call it the January effect. But today I’m going to tell you something very important and very personal, something only my family and close friends have known. After nearly two years of dealing with this, I finally have the courage to share my journey, and I hope it inspires you to make changes.

[02:00] The Mall Mammogram (December 2023)

Dr. Regina Druz (02:00): In December of 2023 I was at my local mall shopping for holiday gifts. I came in through my usual entrance, and right to my left was an interesting new outfit called Pure Mammography — a new medical-business concept where you could walk in and get a mammogram, right there in the mall, no doctor’s prescription required. This was at Roosevelt Field Mall.

Dr. Regina Druz (03:10): At that time I had just started myself on hormone replacement therapy — something we do for many of our patients. I did not self-prescribe it; I went to an online prescriber, and they asked me an important question: when was your last mammogram? I honestly couldn’t remember. As a woman in her fifties with no high-risk features, no prior issues on my mammograms, and no family history, I didn’t consider myself particularly at risk for breast cancer. You can probably see where this is going.

Dr. Regina Druz (04:20): I got my screening and went on with my day — and then the phone calls and letters started: there was a tiny density on the right side that perhaps needed a closer look. I thought, this is a brand-new concept, maybe the technologist was less experienced, and I’ve always had dense breast tissue, like many women. But to be sure I wasn’t missing anything, I went to my local health system, St. Francis Hospital / Catholic Health, which has an outstanding Women’s Health Center. They did a full workup — a mammogram and a breast ultrasound — and a very experienced radiologist came back and said: there’s something so small I can barely see it, but just to be safe, let’s biopsy.

[05:30] Diagnosis: DCIS & Early Invasive Breast Cancer

Dr. Regina Druz (05:30): Let me give you a little context. In February we celebrate American Heart Month, and in early February I’ll be part of a group of physicians releasing a docu-series on cancer, so you can learn more. The goal of today’s episode isn’t only to share my story — it’s to help you understand that the fundamental root-cause processes driving heart disease are also driving cancer. Especially in women in perimenopause and menopause, heart disease and breast cancer share such powerful common drivers that we have to know them, unpack them, and reverse them.

Dr. Regina Druz (06:40): Back to my story. My biopsy was positive. I had ductal carcinoma in situ — known as DCIS — and a very early invasive breast cancer, stage one. After multiple workups, the tumor measured four millimeters; it was a common type for my age group, estrogen-receptor and progesterone-receptor positive. On April 1st, 2024, it was removed from my breast; I had an abbreviated radiation protocol and was placed on Tamoxifen. This story plays out for American women hundreds of times a day — one in eight women in this country will have breast cancer in her lifetime.

Dr. Regina Druz (08:00): And here’s the thing: I had no genetic predisposition. Being who I am — an integrative, holistic longevity doctor — of course I’d tested my genetics with every available protocol, including whole-genome and whole-exome sequencing. But I had something else, something more powerful and more devastating, and discovering it started my journey to unpack the fundamental factors driving both breast cancer and heart disease.

[09:00] Why a Cardiologist Is Telling This Story

Dr. Regina Druz (09:00): So this is why, as a cardiologist, in my first recording of 2026, I’m going solo — because this is not just about my story. My story ended relatively well, though it’s really not the end; it’s the beginning of what I need to do to increase my health span and lifespan. For many women, that story doesn’t have a good ending. So I want you to zoom in this year on the critical factors. We’re going to talk about six.

Dr. Regina Druz (10:00): These six factors are of the utmost importance because they shape our overall health trajectory and influence the majority of chronic, non-communicable diseases — the ones we associate with aging. I’m not an old woman, and yet many women begin showing signs of these abnormalities very early. That was my story. Today we’ll unpack the six, and I’ll start a discussion on how to find them, gauge how much they may be influencing your health, and bring them under control.

Dr. Regina Druz (11:20): If you’re listening on your favorite podcast platform, thank you — I’m so encouraged by how many of you tune in. I do want to give you a chance to watch this on YouTube, because I’m going through a few slides to bring these points home. If you’d like to download the slides, I won’t be attaching them to the show notes, but you can get them easily: through our Holistic Heart University community. You access it by subscribing to our newsletter on the Holistic Heart Centers website. When my staff posts an episode into Holistic Heart University, we usually include any files I shared during the show — plus patient handouts and infographics you can save for your own learning.

Dr. Regina Druz (12:40): Before I go further, I currently celebrate two birthdays — my real one, and April 1st, the day of my lumpectomy. I am eternally grateful to my longtime friend Dr. Zoe Goldberg at Memorial Sloan Kettering Cancer Center, whose swift intervention connected me with an absolutely amazing breast cancer team — oncologists, radiation specialists, and surgeons whose professionalism and ability to understand me as an individual were beyond anything I’d seen. I run a concierge cardiovascular practice and pride myself on that level of care, and I was still overwhelmed by how spectacular that team was. If you ever get a solicitation from Memorial Sloan Kettering, another national cancer center, or the American Cancer Society to support research, please consider giving.

[14:30] The Critical Window: Perimenopause & Menopause

Dr. Regina Druz (14:30): There’s a lot of talk about menopause right now — menopause isn’t just having a moment, it’s having a movement, recognized in the workplace, among experts, and among women themselves. I want to give you a view shaped by my personal story and zoom in on the shared mechanisms you must know about, evaluate, and address — because they shape your risk of cancer, heart disease, dementia, and aging overall.

Dr. Regina Druz (15:30): Heart disease and breast cancer — one might ask, what’s the connection? The connection comes from the critical window of perimenopause plus menopause. Every woman who reaches her 40s, 50s, and 60s goes through the menopausal transition. Yet in the current medical literature, perimenopause — roughly the ten-year period before menopause — isn’t even formally recognized as a stage, although we recognize it clinically. Menopause itself is still defined very simply: about a year without a menstrual period. It’s mechanistic and rudimentary.

Dr. Regina Druz (17:10): We know the overlap in risk between heart disease and breast cancer starts in perimenopause — sometimes earlier — escalates through menopause, and manifests afterward. So this window, the roughly ten years before menopause plus menopause and beyond, is the critical period — and a critical window of opportunity for prevention of both. Cardiovascular risk becomes particularly evident about seven years after a breast cancer diagnosis. If you’re a woman in your late 30s or early 40s, it’s not too early to ask: what is my breast cancer risk, and what is my heart disease risk? And while you go for regular mammograms — which I wholeheartedly endorse — you should also be getting regular cardiovascular screening.

[19:00] Why Standard Screening Misses Women (SMuRFs)

Dr. Regina Druz (19:00): The problem is that cardiovascular screening, in essence, barely exists. We screen for risk factors, and our understanding of them is shaped by population statistics — from studies like the Framingham Heart Study and the Multi-Ethnic Study of Atherosclerosis, or MESA. We identify the factors that rise to the top across populations and call them standard modifiable cardiovascular risk factors — sometimes abbreviated SMuRFs. So you can have a SMuRF or not.

Dr. Regina Druz (20:40): But the root causes actually driving breast cancer and cardiovascular disease in women aren’t well represented in standard screening. Sure, we look at lipids and cholesterol, sugar control, body composition, visceral fat, smoking, hypertension, sedentary behavior — all reasonable population-level factors. Yet women in particular carry other, more secret drivers that primarily influence their disease risk — both breast cancer and cardiovascular disease. There are six of them.

[22:30] Pillar 1 — Estrogen: Depletion, Dominance & HRT

Dr. Regina Druz (22:30): The six pillars are: estrogen — and while estrogen depletion is commonly recognized, it’s also important to look at estrogen dominance before depletion, because that sets the stage; chronic inflammation; oxidative stress; immune system dysregulation; insulin resistance and metabolic syndrome; and environmental toxins. These six mechanistic pillars link breast cancer and cardiovascular disease.

Dr. Regina Druz (24:00): We test for some of these. We can infer insulin resistance from a lipid panel, or measure fasting insulin, hemoglobin A1c, and calculate HOMA-IR — but those are late steps. There’s no single algorithm that pulls together chronic inflammation, oxidative stress, immune dysregulation, and toxins, and integrates them with hormonal state to tell us whether the woman in front of us is at high risk. My own labs were great — except for an inflammatory marker, and except for tissue-level insulin resistance. I was trained in traditional cardiology and then pivoted to integrative and holistic cardiology, and my leaning was toward lipid regulation, so I tended to overlook other facets. We’re not going to do that anymore.

Dr. Regina Druz (26:00): Estrogen depletion is the easiest to understand — it’s both a marker and a root cause. Estrogen, progesterone, and testosterone in perimenopause and menopause follow different trajectories of rise and fall, and many women, like me, go through estrogen dominance before estrogen declines. We need estrogen: it promotes endothelial function and nitric-oxide-dependent vascular health, keeping blood vessels pliable; it’s potently anti-inflammatory; and it helps regulate oxidative stress. But there’s an estrogen paradox: while protective for the heart, estrogen can also influence breast cancer cells.

Dr. Regina Druz (28:00): At my diagnosis I was on HRT, at low doses, and I stopped it immediately. My oncologist said it was highly unlikely the HRT caused my breast cancer, because my exposure was short and breast cancer typically lives in the body for at least a decade in the ductal stage before it becomes invasive. I’ll share one personal observation: at biopsy my tumor measured four millimeters, and about eight weeks later, at lumpectomy, it measured two — but I want to be very clear that this is my individual experience, not proof that any regimen shrinks cancer, and biopsy and surgical measurements aren’t taken the same way. If you’re curious about the broader strategy, we have a NotebookLM called Heart and Diet, or Heart and Supplements, and members of Holistic Heart University and our Heartwell Launchpad get access to these resources and our open office hours.

Dr. Regina Druz (29:30): The timing of hormone therapy is critical — studies suggest early initiation may offer cardiovascular benefit — and our thinking about HRT has evolved, including the removal of the old black-box warning, so it’s time to personalize. I wrote about this in my November Holistic Heartbeat newsletter; the link is always in the show notes. But here’s the caution: no woman should expect to jump on the HRT bandwagon and have inflammation, oxidative stress, immune dysfunction, and insulin resistance magically resolve. I wish it worked that way, but these are deep cellular and physiologic changes that require a multi-pronged approach.

[31:30] Pillars 2–4 — Inflammation, Oxidative Stress & Immunity (the ‘Bermuda Triangle’)

Dr. Regina Druz (31:30): Pillar number two is chronic inflammation — inflammaging, the aging of our organs from inflammation. It’s a silent fire that burns not only in blood vessels but in tissues that can be sensitive to cancer. As estrogen spikes and drops, perimenopause and menopause mark a transition into a chronic inflammatory state. It is rare in my practice to meet a woman — no matter how good her lifestyle — who hasn’t sustained a rise in at least one inflammatory marker through this transition. High-sensitivity C-reactive protein, a very common marker, typically rises at least 20 to 30 percent with menopause, and far more in some individuals. When estrogen falls, it removes a key anti-inflammatory brake; some people are also genetically predisposed to higher baseline inflammation.

Dr. Regina Druz (34:30): Inflammation comes as part of a package — it travels with oxidative stress and immune activation. Oxidative stress is a double-edged sword: it means we’re producing free radicals, reactive oxygen species (and sometimes reactive nitrogen species). We need them — they help kill cancer cells, bacteria, and viruses. Immune cells are the first responders, the firefighters and containment crew, and they deploy oxidative stress to attack invaders and start repair. The problem is too much of a good thing: if free radicals linger, they damage our DNA, RNA, lipids, and proteins. We need a Goldilocks balance — just right. And we encounter oxidative stress in everyday life: every time we exercise or fast, there’s some.

Dr. Regina Druz (36:30): Inflammation, oxidative stress, and immune imbalance form a powerful Bermuda Triangle. Growing up in the former Soviet Union, I loved the occasional non-political story in the press — the sci-fi and science pieces, especially about the Bermuda Triangle and disappearing ships and aircraft. As a longevity doctor, I can tell you one truly can disappear inside a biological Bermuda Triangle. As the immune system gradually deteriorates — again starting in perimenopause and falling off a cliff in menopause — the body can’t clear what needs stabilizing: we get plaque instability, a greater tendency to clot, and impaired surveillance of cancer cells, allowing cancer to begin its invasive process.

Dr. Regina Druz (38:00): The good news is that we can measure these processes, and most of the biomarkers are commercially available from standard blood tests. If you’ve heard my earlier episodes, you know we use Heartwell Toolkits — a curated collection of blood, urine, and saliva tests, intentionally drawn from multiple vendors so each tool does its specific job and maps a given area comprehensively. We recently partnered with a company out of Stanford to include an immune-system and inflammation-aging test, currently in our Longevity Heartwell Toolkit. The point is: don’t guess — test.

[40:00] Pillar 5 — Insulin Resistance, Visceral Fat & the Menopausal Heart

Dr. Regina Druz (40:00): Probably the most impactful sign that things are off — and this was my story — is a changing body. Somewhere around 55, maybe a little earlier, I became aware that my body was changing fast. I’ve never been overweight; I tend to be lean and I exercise, though I’m not the CrossFit type. In my late 40s, after three children, it was relatively easy to normalize my weight. As I moved into my 50s, it became nearly impossible. This is a story shared by many women — and if it’s yours, please reach out; we have resources, including Holistic Heart University and Heartwell Toolkits focused on heart and brain, hormone and weight, and longevity. We have a cardiometabolic program that helps women lose toxic fat while preserving muscle.

Dr. Regina Druz (42:00): I can’t overstate how impactful insulin resistance and metabolic syndrome are — they roughly double disease risk and create the perfect storm inside the Bermuda Triangle. Insulin resistance starts at the organ level — liver, muscle, fat — then spills into the systemic circulation. You begin to accrue visceral fat, and toxic fat around the heart and its vessels: pericardial, epicardial, or ectopic adipose tissue. I prefer ‘ectopic,’ because it’s fat in places it doesn’t belong — around the coronary vessels, even around the left atrial appendage, the upper-chamber structure tied to atrial fibrillation, which also escalates in women with menopause.

Dr. Regina Druz (44:00): Epicardial adipose tissue — EAT — is what literally eats your heart. Cardiology literature describes it as nearly invasive: sitting on top of the heart, it can send fat cells into the heart muscle. Many women after menopause develop stiff hearts, with shortness of breath, palpitations, or reduced exercise tolerance — not from coronary blockages, but from a structural problem: the heart becomes stiff. Taken far enough, this becomes heart failure with preserved ejection fraction, or HFpEF — in plain language, a heart too stiff to stretch and fill properly, so it pushes out too little blood. I call the cluster of insulin resistance, inflammation, oxidative stress, and these measurable changes the menopausal heart syndrome, and we’ll devote a separate episode to it.

Dr. Regina Druz (45:00): Luckily, much of this is measurable — heart thickness, the heart’s stretchiness, arterial stiffness — all in-office, and many of these can change within three to six months, giving you both a baseline and an opportunity. That’s why in 2026 we’re offering all new patients a cardiovascular longevity assessment that estimates vascular age and arterial stiffness. We’re also approaching an era where we can quantify the fat around heart structures and even the degree of inflammation in it — technology already in use in Europe and coming to the United States. Watch for our announcements.

Dr. Regina Druz (45:40): In my own case, blood work from years before my diagnosis showed a clear progression toward insulin resistance. Diabetes runs in my family; I was never pre-diabetic, but the patterns were there. And you don’t need fancy testing to see them: a fasting lipid panel gives you the triglyceride-to-HDL ratio, and a ratio of two or greater is highly correlated with insulin resistance. Add high-sensitivity C-reactive protein — in every standard panel — and with just those basics you can tell whether you’re insulin-resistant and inflamed.

[47:00] Pillar 6 — Environmental Toxins & Detox

Dr. Regina Druz (47:00): What I also learned — in my own process and with our patients — is that you cannot underestimate environmental toxins. I call myself a detox disaster: an in-depth evaluation after my diagnosis showed my detoxification pathways, mitochondrial and cellular, are genetically not aligned with the best scenario. Everyday exposures weren’t being helped by my genetics, and I had no plan to alleviate that genetic burden.

Dr. Regina Druz (48:30): There’s a big conversation now about endocrine-disrupting chemicals, and it’s critical because no standard cardiovascular equation measures this — you have to measure it directly. As women, we’re prone to accumulating these, because we tend to carry more adipose tissue, and as we gain visceral and ectopic fat through perimenopause and menopause, we add toxins on top of inflammation, oxidative stress, immune dysregulation, and insulin resistance. And by toxins I don’t only mean environmental — a toxic workplace, a toxic relationship, a highly stressful situation all feed into the same Bermuda Triangle. Given that I had no standard breast cancer risk factors, in my mind the critical drivers were insulin resistance, chronic inflammation, and environmental toxic exposure.

Dr. Regina Druz (49:30): The good news, again, is that this is testable — part of our longevity toolkit — alongside oxidative stress, because these are such impactful variables connecting breast cancer risk and all categories of heart disease risk in women, not just coronary artery disease.

[50:30] The Window of Opportunity & Unified Prevention

Dr. Regina Druz (50:30): So the critical window of opportunity is real. Every woman in her early 40s, and especially her 50s, should understand her vascular risk. Many go for annual mammograms, breast ultrasounds, even breast MRIs — vital — but you’re not doing a complete job of understanding your breast cancer and heart disease risk if you’re not also looking at these six pillars: inflammation, immune activation, oxidative stress, toxic exposures, and insulin resistance. And here’s a pearl: hemoglobin A1c alone doesn’t tell us much about insulin resistance, because it’s organ- and tissue-based, and A1c is standardized mainly for managing diabetes — not for detecting early insulin resistance.

Dr. Regina Druz (52:30): These measures are often independent of chronological age. Take your past blood work and look for trends — if your high-sensitivity CRP stayed below the cutoff but doubled over a few years, that’s movement in the wrong direction. The window isn’t necessarily short; it’s about ten years. For hormone replacement, we typically advise starting within ten years of menopause or before age 60. But risk compounds, and after a major diagnosis like breast cancer, cardiovascular risk accelerates and becomes clinically evident within about seven years. Early intervention is the opportunity to break free of the Bermuda Triangle — because once the transition is in full swing, interventions are less effective and some carry their own risk.

Dr. Regina Druz (54:00): The good thing is we’re in a paradigm shift — patients and practitioners alike are more open to an integrative point of view that goes beyond cardiovascular risk factors to the real root-cause drivers, and most of the tests are easily available. In our hormone-and-metabolism Heartwell Toolkit, for example, we measure a full hormonal profile, oxidative stress, endocrine disruptors, and micronutrients — so you can act on your personal risk factors, not just population averages. You can start with simple blood panels or go deeper with the toolkits, but it’s absolutely possible.

Dr. Regina Druz (55:00): Lifestyle is key — and by lifestyle I don’t just mean a Mediterranean or DASH pattern, but a structured program: foundational and interventional nutrition like a fasting-mimicking diet, a specific exercise prescription, and weight management. Weight management has moved well beyond conservative measures and metformin to incretin therapies — GLP-1s and GIPs, and soon triple-incretin agents — medications like Wegovy, Ozempic, Mounjaro, and Zepbound, which offer not just weight loss but metabolic remodeling. Look for an upcoming Holistic Heartbeat issue and a February episode on metabolic disease-modifying drugs. At Holistic Heart Centers we sometimes use these in an off-label, microdosed fashion for anti-inflammatory, immune-stabilizing, weight-loss, and vascular benefits. These incretins are pharmacological peptides, and for women on hormone therapy, they can work synergistically with hormones. I’m not a big fan of statins — I use them when I must — but statins, the PCSK9 inhibitor Repatha, and metformin have each been described as having anti-cancer properties; these are points for discussion to explore with your clinician, not blanket recommendations.

[56:30] Survivorship, Gratitude & Looking Ahead to 2026

Dr. Regina Druz (56:30): I want my patients — and myself — on the longevity path that gives the highest return on investment: not just doing a supplement or an exercise, but bringing data-driven decisions so you can see where you’re most likely to improve. That starts with identifying the mechanisms. So I hope I’ve convinced you that breast cancer and heart disease are driven by six shared pillars — estrogen fluctuations including depletion, inflammation, oxidative stress, immune dysregulation, metabolic syndrome, and toxins — and that we have real ways to find them. This isn’t experimental anymore; it should be routine.

Dr. Regina Druz (57:30): We have that critical window — the menopausal transition and the decade before it. None of us knows exactly when we’ll fully transition, but you can ask your mother when she went through menopause and start working on yourself ten years before. I have three children; my two daughters are in their 20s and already follow a lifestyle protocol I hope will protect them. Metabolic urgency matters — demand this level of screening from your primary care doctor; these are simple blood tests. We also have patients use body-composition scales at home to track percent body fat and visceral fat — objective markers we can reduce.

Dr. Regina Druz (58:30): This is the time for unified prevention. Whether you’re an older woman, a younger woman, or a man who cares about the women in his life, there’s a powerful opportunity here because it addresses fundamental factors. And you don’t need to do anything extraordinary to begin — you can start by educating yourself, getting appropriate testing, and monitoring your body composition. Instead of shooting in the dark with this protocol or that diet, strive for objective measurements so you understand where your risk comes from. My risk didn’t come from traditional exposures or genetics — it came from chronic inflammation, insulin resistance, and high oxidative stress, with room to improve my immune health and a real need for cellular detox. I don’t mean a seven-day juice cleanse; I mean cellular detox that influences the hallmarks of aging, which we’ll explore through 2026. There’s a lot of talk about blue zones — but you can create your own home blue zone if you understand how.

Dr. Regina Druz (59:30): To all the women out there who have survived and thrived with breast cancer: please know I’m one of you. I hear you, and I hear myself — and you can tell I’m getting emotional. I didn’t plan on that, but this is what it is. On April 1st I’ll celebrate my two-year anniversary of being breast cancer free, and I intend to stay that way — and to become as metabolically healthy as possible, which is what I wish for all of you, man or woman, in 2026 and beyond. I’ll see you in the next episode.

Dr. Regina Druz (1:00:30): Thank you for tuning in to Own Your Heart Health with Dr. Regina Druz. This podcast is powered by Holistic Heart Centers. If you enjoyed the show, please rate and review us on your favorite platform. To learn more about our services, visit holisticheartcenters.com and subscribe to our YouTube channel — the link is in the show notes. See you next week.

Frequently Asked Questions

What’s the connection between breast cancer and heart disease?

Dr. Druz explains that the two diseases share underlying biology, and the link is most visible across the ‘critical window’ of perimenopause and menopause. As estrogen fluctuates and then declines, the body shifts toward a chronic state of inflammation, oxidative stress, and immune dysregulation, often accompanied by insulin resistance and a greater toxic burden. These same root-cause processes can promote both vascular disease and cancer. She also notes that cardiovascular risk tends to become clinically evident within about seven years of a breast cancer diagnosis, which is why she urges women to pursue cardiovascular screening alongside their mammograms. This is educational information, not medical advice.

What are the six shared pillars — and can they be measured?

The six pillars she describes are: (1) estrogen shifts — dominance and then depletion; (2) chronic inflammation (‘inflammaging’); (3) oxidative stress; (4) immune-system dysregulation; (5) insulin resistance and metabolic syndrome; and (6) environmental toxins, including endocrine-disrupting chemicals. Importantly, she emphasizes that most of these can be measured — many from standard blood panels (for example, a fasting lipid panel for the triglyceride-to-HDL ratio, and high-sensitivity C-reactive protein for inflammation), and others through more comprehensive blood, urine, and saliva testing. Her message is ‘don’t guess — test,’ and then address findings through a structured, individualized plan. None of this is a personalized protocol; work with your own clinician.

Did hormone replacement therapy cause Dr. Druz’s breast cancer?

Dr. Druz shares that she was on low-dose HRT at the time of her diagnosis and stopped it immediately. She reports that her oncologist considered it highly unlikely that the HRT caused her cancer, because her exposure had been short and breast cancers typically develop over a long period — often at least a decade in the early ductal stage — before becoming invasive. She also notes that thinking about hormone therapy has evolved, including the removal of the older black-box warning, and that the timing and personalization of HRT matter. This reflects her individual situation and a general discussion; decisions about hormone therapy are highly individual and should be made with your own qualified clinician.

When should women start paying attention to these risks?

Earlier than most expect. Dr. Druz suggests that the late 30s and early-to-mid 40s are not too early to begin understanding both breast cancer and heart disease risk, and that the roughly ten-year window before menopause is a critical opportunity. A practical starting point: ask your mother when she went through menopause and consider beginning preventive work about a decade before that. She points to simple, widely available labs (a fasting lipid panel and hs-CRP), home body-composition tracking, and conversations with your primary care physician about deeper screening. She cautions that hemoglobin A1c alone does not reliably detect early insulin resistance. This is general guidance, not a personalized plan.

Show Notes & Resources

Host: Dr. Regina Druz, MD, FACC

Dr. Regina Druz is a holistic and integrative cardiologist, the host of Own Your Heart Health, and the founder of Holistic Heart Centers. Board-certified in cardiology and nuclear cardiology with decades of clinical experience, she blends conventional cardiology with functional and longevity medicine, with a particular focus on women’s cardiovascular health through the perimenopausal and menopausal transition. In this solo episode she shares her own breast cancer journey to illuminate the root-cause biology that links cancer and heart disease, and to encourage earlier, measurement-driven prevention.

Resources Mentioned in This Episode

Episode slides — NOT attached to the show notes; downloadable inside the Holistic Heart University community (join free by subscribing to the Holistic Heartbeat newsletter on holisticheartcenters.com). Watching on YouTube is recommended, since Dr. Druz narrates the slides.
Holistic Heartbeat newsletter — monthly; the November issue covers the evolving thinking on hormone therapy and the black-box-warning removal (link in the show notes)
HeartWell Toolkits — curated at-home blood/urine/saliva panels: Longevity (includes a Stanford-partnered immune-system / inflammation-aging test), Hormone & Metabolism (full hormonal profile, oxidative stress, endocrine disruptors, micronutrients), and Heart & Brain
Cardiovascular longevity assessment — in-office estimate of vascular age and arterial stiffness (offered to new patients in 2026); emerging imaging can quantify fat around the heart and its inflammation (in use in Europe, coming to the U.S.)
DIY starter labs — a fasting lipid panel (triglyceride-to-HDL ratio of ≥2 is highly correlated with insulin resistance) and high-sensitivity C-reactive protein (hs-CRP)
Cardiometabolic program — structured nutrition (including fasting-mimicking approaches), exercise prescription, and weight management designed to reduce visceral/ectopic fat while preserving muscle
‘Chat with the podcast’ on NotebookLM — Google notebooks ‘Heart and Diet’ and ‘Heart and Supplements’ (holisticheartcenters.info/notebook)
Memorial Sloan Kettering Cancer Center & the American Cancer Society — Dr. Druz encourages supporting cancer research
Coming soon — a February episode on metabolic disease-modifying drugs (incretin / GLP-1 therapies) and a dedicated episode on ‘menopausal heart syndrome’
Schedule a consult with Holistic Heart Centers — go.holisticheartcenters.com/apply

Holistic Heart Centers

holisticheartcenters.com
HeartWell.ai — AI-powered cardiovascular risk assessment
Address: 55 Bryant Avenue, Suite #6, Roslyn, NY 11576
Phone: 877-511-5166
YouTube: @reginadruzmd
Instagram: @dr.reginadruz
Podcast: Own Your Heart Health — available on Apple Podcasts, Spotify, and all major platforms

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