Atherosclerosis and cardiovascular risk

Plaque develops within the artery wall

Atherosclerosis involves plaques containing lipids, immune cells and fibrous tissue within artery walls. Plaques may gradually narrow an artery or change in ways that promote a clot. Gradual narrowing and sudden obstruction are different processes, and a single cholesterol result cannot capture all risk.

Manage the risks together

Stopping smoking, suitable food and activity, and managing blood pressure, cholesterol and diabetes can influence long-term risk. Treatment depends on existing disease, overall risk and treatment burden. Absence of symptoms does not exclude disease, but high cholesterol alone does not prove that a particular artery is blocked.

Measure treatment by outcomes that matter

Medicines, procedures and surgery serve different purposes. Some reduce future events; others improve blood flow and symptoms at a particular site. A stent does not remove disease throughout the circulation. At follow-up, clarify each treatment’s purpose, possible harms and review schedule. Do not stop prescribed medicines on your own.

Act promptly on acute symptoms

Sudden facial droop, one-sided weakness or difficulty speaking requires local emergency help, even if it resolves. Acute chest pain suggesting a heart attack also needs urgent assessment. Do not wait for a lesson, an AI answer or a home measurement to rule out an emergency.

Questions for your clinician

• Which factors and population are used in my risk assessment?
• Does each treatment mainly improve symptoms or prevent future events?
• Which symptoms or changes require emergency help?

Explore the underlying science

• 11 · Circulation: vessels, pressure and tissue perfusion
• 35 · Fats: energy stores, cell structure and transport
• 70 · Atherosclerosis and cardiovascular disease
• 81 · Comparing treatments and personal preferences

Sources

• NHLBI: Atherosclerosis
• NHLBI: Atherosclerosis treatment
• CDC: Stroke signs and symptoms
• NHLBI: Heart attack symptoms