Heart health post-menopause.

Heart disease is the #1 killer of women in the US — more than all cancers combined. The protective effect of estrogen on cardiovascular system disappears in the 5-10 years after menopause, and women's cardiovascular risk rises sharply to roughly match men's by age 65.

What's underappreciated: women's heart disease presents and progresses differently than men's, and the standard cardiac workup is designed around the male pattern. Important things get missed.

What the pattern looks like in women

Symptoms: women are less likely to have classic crushing chest pain. More likely: shortness of breath, fatigue, nausea, jaw or upper back pain, "indigestion" that doesn't resolve. About 30% of women's heart attacks present without significant chest pain at all. (McSweeney et al., 2003 — Circulation)

Disease pattern: women are more likely to have microvascular disease (dysfunction of the smallest arteries) and non-obstructive coronary artery disease (CAD without the discrete plaques that show up on standard angiography). Both are real disease that produces real ischemia — but both get missed by standard testing because the standard tests look for the male pattern of discrete coronary plaque.

Outcome: women under 55 hospitalized for heart attack are about twice as likely to die in hospital as men of the same age (Lichtman et al., 2018 — Circulation). The mortality gap closes with age but the diagnostic-delay gap persists.

What to ask your doctor for

The standard annual physical is not sufficient for cardiovascular screening in women 50+. The honest workup includes:

1. Lipid panel with detail — not just total cholesterol and HDL. You want LDL-P (particle count), apoB (atherogenic particle marker), Lp(a) (genetic risk factor most people are never tested for), and a hsCRP for inflammation. Cost: $50-$200 if not covered.

2. Coronary Artery Calcium (CAC) scan at age 50-55. A low-dose CT that quantifies calcium in coronary arteries. CAC score of 0 means very low 10-year cardiovascular risk; CAC > 100 is intermediate risk; CAC > 400 is high risk. Cost: $100-$400 cash. Not always covered.

This single test reclassifies a meaningful percentage of women — both ways. Women considered "low risk" by traditional Framingham scoring sometimes have CAC > 100 and need aggressive intervention. Others considered "intermediate risk" have CAC of 0 and can be reassured.

3. Lp(a) — the genetic risk factor. Roughly 20% of people have elevated Lp(a) that confers significant lifetime cardiovascular risk independent of other factors. It's genetic, lifelong, and unmodifiable by lifestyle. You should know your number once. Cost: ~$50.

4. Blood pressure — at home, multiple readings, not just at the doctor's office. White-coat hypertension is real and bidirectional (some people read high at the doctor and normal at home; some the opposite). Get an Omron home cuff, measure 3 times per week for 2 weeks, take the average.

5. Symptoms log. Anything that feels cardiac (shortness of breath, fatigue, palpitations, jaw pain, "I felt off" episodes). Even if your doctor dismisses individual instances, a pattern is data.

What works for prevention

The interventions with the strongest cardiovascular evidence for women 50+:

1. Blood pressure control. Below 130/80. The single highest-leverage modifiable factor. Medication when warranted; no waiting for "borderline" to become "definite."

2. Statins when indicated by ASCVD calculator + CAC score. Statins are over-prescribed in some populations and under-prescribed in others. The decision should be informed by actual cardiovascular risk, not just LDL number. CAC > 100 generally argues for statins regardless of LDL.

3. HRT in the 10-year window for women without contraindications. The 2023 reanalyses show cardiovascular protection (specifically against coronary heart disease) when initiated within 10 years of menopause. (Letter #1.)

4. Mediterranean dietary pattern. PREDIMED trial — Mediterranean diet with extra olive oil reduced major cardiovascular events by 30% vs control diet in the highest-risk subset.

5. 150 minutes/week of moderate aerobic activity + 2 resistance sessions. Standard recommendation, but it's the standard recommendation because it works.

6. Sleep 7+ hours. Sleep below 6 hours is independently associated with elevated CVD risk. The sleep architecture protocol from letter #14.

What gets undertreated

Three patterns I see repeatedly:

1. Women dismissed in the ER. Women presenting with cardiac symptoms are demonstrably less likely to be triaged urgently than men with the same symptoms. If you ever have to go to the ER for chest pain or shortness of breath, be very specific: "I am concerned this is a cardiac event. I want troponin and an ECG within 30 minutes."

2. Statin refusal based on outdated information. Some women refuse statins because of stories about muscle pain or cognitive side effects. Both side effects are real but rare; the underlying mortality benefit at high risk is substantial. Have an evidence-based conversation, not a meme-based one.

3. HRT not considered. Many cardiologists don't bring up HRT because it's considered "the GYN's department." Many GYNs don't bring up cardiovascular benefit because it's "the cardiologist's department." For women in the 10-year window, this is one conversation that ought to involve both.

What to do this week

1. Pull up your last labs. Do you have LDL-P, apoB, Lp(a), hsCRP? If not, request them at your next visit (or order through Function Health, Inside Tracker, or a direct-to-consumer lab service).
2. Get a CAC scan if you're 50+. One test. Reclassifies your risk. Cheap.
3. Take 7 days of home blood pressure readings. Average them. Know your real number.
4. Audit your symptoms. Anything in the past 6 months that felt cardiac — write it down before you forget the details.

Next week: depression and anxiety — the under-recognized hormone-linked mental health pattern in midlife.

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