Topic

Cardiovascular Risk

How the systems most likely to decide your lifespan actually break down: LDL and ApoB, blood pressure, the endothelium, coronary calcium, the dose-response math nobody teaches you.

10 articles

Calibrated Signal hero card for I Crushed My ApoB to 38, Nobody Measured My Small Vessels: a wide open coronary artery in cross-section branching downstream into a dense network of tiny inflamed red micro-vessels.
Cardiovascular RiskAging Biology

I Crushed My ApoB to 38. Nobody Measured My Small Vessels.

Cholesterol is half the job. Inflammation in the microvasculature is the other half, and it is the layer a standard cardiac workup never actually measures.

Jul 27, 2026 · 20 min read
Calibrated Signal hero card for The Heart Attacks You Never Feel, on how a coronary blockage can be built by silent plaque ruptures.
Cardiovascular RiskPatient Advocacy

The Heart Attacks You Never Feel

A coronary blockage can be built by silent ruptures that heal in secret. Mine probably was, and I still spent years refusing the proven treatment that stops them.

Jun 20, 2026 · 16 min read
Calibrated Signal article hero card for The Plaque a Calcium Score Can't See, contrasting a calcium-only heart scan with a coronary CT angiogram that reveals soft plaque.
Diagnostic ToolkitCardiovascular Risk

The Plaque a Calcium Score Can't See

A severe blockage. A calcium score that would have read zero. And if you ever get chest pain, the one question that gap should make you ask.

Jun 11, 2026 · 15 min read
Calibrated Signal article hero: I Trained Hard for 25 Years. I Was Measuring the Wrong Fitness. A lean, dark-haired man in his 40s stands facing a dim gym mirror, studying his own muscular reflection.
Cardiovascular RiskAging Biology

I Trained Hard for 25 Years. I Was Measuring the Wrong Fitness.

I trained hard for 25 years and never once measured my cardiorespiratory fitness. A hard program isn't a complete one, and the system you train best hides the ones you never test.

May 27, 2026 · 26 min read
Calibrated Signal featured card: What Twenty Years of “Borderline” Blood Pressure Actually Costs You, over a blood-pressure cuff beside a monitor showing a continuous arterial waveform.
Cardiovascular RiskAging Biology

What Twenty Years of “Borderline” Blood Pressure Actually Costs You

A single 132/85 at 35 isn’t a snapshot. It’s a 20-year dose your arteries are already logging, and “borderline” is the word that hides the bill.

May 14, 2026 · 28 min read
Calibrated Signal featured card: What Twenty Years of “Borderline” LDL Actually Costs You — an hourglass whose falling sand is made of copper cholesterol particles.
Cardiovascular Risk

What Twenty Years of “Borderline” LDL Actually Costs You

A single LDL of 145 at 35 isn’t a snapshot. It’s a 30-year exposure your arteries are already logging, and “borderline” is the word that hides the bill.

May 2, 2026 · 26 min read
Calibrated Signal featured card: Metabolically Healthy Isn’t a Diagnosis, a coronary artery cross-section with soft yellow plaque on dark navy.
Evidence CritiqueCardiovascular Risk

I Was “Metabolically Healthy.” I Got a Stent at 44 Anyway.

Low hsCRP, a flat CGM, no insulin resistance: every marker the low-carb world calls “safe.” Then a CT angiogram found an 80% blockage in my right coronary artery.

Apr 24, 2026 · 18 min read
Calibrated Signal featured card: I Was Doing Almost Everything Right. It Wasn’t Enough. — a dark navy still life of a smartwatch, ring, recovery devices, and a glowing red-light therapy panel.
Cardiovascular RiskPatient Advocacy

I Was Doing Almost Everything Right. It Wasn’t Enough.

I’ve told you about the blockage . I’ve told you about the science the keto world gets wrong . I’ve told you about the tests that missed it and the figh…

Apr 12, 2026 · 12 min read
Calibrated Signal featured card: The Battle for the Coronary Artery Scan That Saved My Life, a translucent heart inside a CT scanner ring on dark navy.
Diagnostic ToolkitPatient Advocacy

The Battle for the Coronary Artery Scan That Saved My Life

I passed the full cardiac workup, all normal. The fight was not against my cardiologist, but against the false comfort of being statistically unlikely.

Mar 30, 2026 · 18 min read
Calibrated Signal featured card: The Keto Study Used to Dismiss LDL, Then It Was Retracted — an artery cross-section with glowing plaque on dark navy.
Evidence CritiqueCardiovascular Risk

The Study the Keto Community Uses to Say LDL Doesn’t Matter. Then the Follow-Up Got Retracted.

A keto study is cited to argue high LDL is harmless when metabolic markers are clean. The follow-up that measured soft plaque was retracted in 2026. Here's what the evidence shows.

Mar 27, 2026 · 21 min read