Prediction of clinical cardiovascular events with carotid intima-media thickness: a systematic review and meta-analysis.

Researchers followed adults and measured the thickness of the inner layers of the common carotid artery, a large artery in the neck. This measurement is called intima-media thickness, or artery-wall thickness. People with thicker artery walls were more likely to later have a stroke, meaning a blocked or bleeding blood vessel in the brain, or a heart attack. The study observed this link but did not test a treatment, so it cannot prove that thicker walls caused these events.

What this means for you: This supports artery-wall thickness as a risk marker, not as a reason to buy a scan or supplement. Established steps such as controlling blood pressure, cholesterol, smoking, and diabetes matter more, and this measurement alone cannot predict an individual’s future.