Risk factors for atherosclerosis include dyslipidemia, hypertension, diabetes, obesity, smoking, and physical inactivity. These conditions individually and collectively damage the vascular endothelium, promote plaque formation, and accelerate the process of arterial narrowing and stiffening.
- Dyslipidemia: High LDL cholesterol and triglycerides, or low HDL cholesterol, facilitate fatty plaque deposition in arterial walls.
- Hypertension: Elevated blood pressure injures the endothelium and increases the risk of plaque rupture.
- Diabetes: Chronic high blood sugar causes vascular inflammation and accelerates atherosclerotic changes.
- Obesity and physical inactivity: Both contribute to lipid imbalances, insulin resistance, and systemic inflammation, increasing cardiovascular risk.
- Smoking: Toxins in tobacco damage blood vessels, reduce HDL cholesterol, and promote plaque formation.
These risk factors collectively promote atherosclerosis, which is the underlying cause of many serious conditions:
- Coronary artery disease (CAD): Narrowed coronary arteries can lead to angina or myocardial infarction.
- Cerebrovascular disease (stroke): Blocked cerebral arteries cause ischemic strokes or transient ischemic attacks.
- Peripheral artery disease (PAD): Reduced blood flow to the limbs causes pain, claudication, and in severe cases, tissue damage.
- Kidney damage: Narrowed renal arteries impair kidney function, potentially leading to chronic kidney disease.
Effective prevention and management focus on controlling these risk factors through lifestyle modification—healthy diet, regular exercise, weight management, and smoking cessation—and, when necessary, medical treatment to reduce the risk of severe vascular complications.
