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Saturday, October 31, 2026Oct 31

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Ask a Doctor: What is carotid artery disease?

Medical doctor  with a stethoscope around his neck  holding
Medical doctor with a stethoscope around his neck holding Medical doctor with a stethoscope around his neck holding
photo Dr. Chris Lesar

Q: What is carotid artery disease?

A: The disease occurs when the major arteries in your neck – which supply blood to your brain – become narrowed or blocked. The carotid arteries extend from your chest to the brain. As you age, a sticky substance called plaque – made up of cholesterol, calcium and fibrous tissue – can build up in the walls of your arteries. As more builds up, your arteries narrow and stiffen, leading to a process called atherosclerosis, or hardening of the arteries. A blocked carotid artery is a major risk for stroke. Ways to prevent this disease include quitting smoking, exercising regularly, eating a healthy diet and maintaining a healthy weight.

– Dr. Chris Lesar, Vascular Institute of Chattanooga, member of Chattanooga-Hamilton County Medical Society