Molecular Longevity
Summary
- What it is
- An explanation of the coronary artery calcium score and how to read it.
- Who it is for
- Anyone assessing long-term cardiovascular risk.
- Evidence level
- CAC scoring is well-validated and established.
- Bottom line
- A direct look at calcified plaque — one of the most useful early-risk numbers.
The coronary artery calcium score — the CAC score — is one of the most useful and underused numbers in preventive cardiology.
What it measures
A CAC scan is a quick, specialized imaging study that detects and quantifies calcified plaque in the coronary arteries. Calcified plaque is a marker of atherosclerosis — the disease process underlying most heart attacks. The score puts a number on something that is otherwise invisible.
How to read the number
A score of zero is genuinely reassuring — it indicates no detectable calcified plaque. Higher scores indicate more calcified plaque and, generally, higher cardiovascular risk. The number is interpreted alongside your age, sex, and other risk factors; the same score means different things at different ages.
Why it is valuable
The CAC score can reveal meaningful risk in people whom standard risk calculators classify as low-risk — and conversely, can be reassuring for people who worry unnecessarily. It moves cardiovascular knowledge years earlier, into the window where prevention has the most leverage.
ContextA CAC score is one input, not a verdict. It belongs inside a fuller cardiovascular assessment — see Cardiovascular Risk & Early Detection.
◆ Dr. Shusterman’s take
When a patient asks what single test they have probably never been offered but should understand, the CAC score is near the top of the list. It turns an abstract worry about the heart into a concrete number you can actually act on — ideally decades early.
Related service
This topic connects to Cardiovascular Risk & Early Detection at the practice.
Go deeper
This topic is covered in greater depth in the book, UroLongevity: What Comprehensive Longevity Medicine Offers.
Related reading
What Is Comprehensive Longevity Medicine?
The paradigm explained — and clearly separated from biohacking and anti-aging marketing.
Read ›The Biology of Aging, Explained
What is actually happening, at the cellular level, when we age.
Read ›How to Read Medical Evidence
The single most useful skill for navigating longevity claims.
Read ›Begin with a consultation
A consultation is a conversation about your health trajectory and whether this approach fits your goals. It carries no obligation.
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