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What s the Difference Between Atherosclerosis and Arteriosclerosis

Medically reviewed by Avi Varma, MD, MPH, AAHIVS, FAAFP — By Kirsten Nunez on October 5, 2022Arteries are blood vessels that carry oxygen-rich blood away from your heart and to vital organs. Atherosclerosis happens when these arteries become narrow due to a buildup of plaque. This can make it difficult for oxygen to reach your organs. Atherosclerosis is a type of arteriosclerosis (hardening of the arteries). The plaque buildup in atherosclerosis makes the arteries thick and stiff. Read on to learn about the causes, risk factors, and treatment for each one.

What is atherosclerosis

Atherosclerosis is a chronic inflammatory condition that involves buildup of plaque in your arteries. This plaque is made of substances such as cholesterol and fat. As the plaque accumulates, it makes your arteries narrow. This lowers the flow of oxygen-rich blood to your vital organs.

What is arteriosclerosis

Arteriosclerosis occurs when the walls of arteries become stiff and hard. This makes it harder for blood to flow through, which increases pressure. If left untreated, arteriosclerosis can lead to high blood pressure, or hypertension.

What are the symptoms of atherosclerosis and arteriosclerosis

It can be difficult to identify atherosclerosis and arteriosclerosis.

Atherosclerosis symptoms

In the early stages, atherosclerosis typically causes no symptoms. If you do have symptoms, it usually appears when you’re physically or emotionally stressed. That’s because your body needs more oxygen during these times. Possible symptoms of atherosclerosis include:chest pain (angina)cold sweatsdizzinessfatiguefast heart rateshortness of breathnauseaweaknesscramping in buttocks while walkingconfusion (if blockage affects brain circulation)muscle weakness in legs (due to lack of circulation)pain in legs or arms

Arteriosclerosis symptoms

Arteriosclerosis also causes no symptoms, especially in the early stages. Even if it progresses into hypertension, or high blood pressure, it will cause no symptoms. The only way to know if you have hypertension is to get your blood pressure measured.

Causes of atherosclerosis and arteriosclerosis

Atherosclerosis and arteriosclerosis are caused by different mechanisms.

Atherosclerosis causes

Atherosclerosis is linked to damage of endothelial cells. These cells make up the inner lining of the artery. When this happens, it leads to inflammation. This promotes the development of plaque.

Arteriosclerosis causes

Elastin fibers are proteins that make arterial walls elastic and flexible. When elastic fibers are exposed to oxidative damage, they break apart and fray. This lowers the structured arrangement of elastin fibers. As a result, the arterial wall becomes stiff, causing arteriosclerosis.

Risk factors for atherosclerosis and arteriosclerosis

In general, atherosclerosis and arteriosclerosis have different risk factors, but some overlap.

Atherosclerosis risk factors

The risk factors for atherosclerosis include:agingfamily history of atherosclerosishigh blood cholesterol levelshigh blood pressuresmoking tobaccohigh saturated fat intakediabetes

Arteriosclerosis risk factors

Aging is the main risk factor for arteriosclerosis. Over time, the elastin fibers naturally lose their elasticity. This makes your arteries stiff and hard, potentially leading to arteriosclerosis. In fact, after age 55, the stiffness of arteries significantly increases. Atherosclerosis increases the risk of hypertension, eventually leading to atherosclerosis and other health conditions.

How are atherosclerosis and arteriosclerosis treated

The treatment for atherosclerosis and arteriosclerosis is similar. It primarily involves healthy lifestyle habits that support the health and function of your arteries. This includes:Staying active: Exercise treats both conditions by improving endothelial function, inflammation, and arterial elasticity. It’s recommended to exercise 90 to 150 minutes per week.Eating heart-healthy foods: A heart-healthy diet is rich in monounsaturated fats, fruits, vegetables, and fiber. It’s also low in salt and saturated fat.Quitting cigarette smoking: If you smoke, quitting will help improve the health and function of your arteries. It’s also important to avoid secondhand smoke. Quitting is often difficult, but a doctor can help create a plan that works for you.Limiting alcohol: If you consume alcohol, drinking less will help. The recommendation for men and women is two and one drinks per day, respectively.Managing stress: Practicing stress management will improve your blood pressure and heart health.Taking prescription medication: If atherosclerosis or arteriosclerosis leads to high cholesterol or high blood pressure, a doctor might prescribe medication.Get enough sleep: Sleep is essential for overall physical health. It’s recommended to get 7 to 9 hours of sleep each night.

When to contact a doctor

Atherosclerosis and arteriosclerosis usually cause no symptoms until they’ve led to other health conditions. So, it’s a good idea to visit a doctor for annual physical exams. These routine checkups will allow your doctor to determine if you’re at risk of developing either condition. Additionally, you’ll be able to start treating the condition before it gets worse. You should also see a doctor if you have:a family history of atherosclerosis or heart diseasechest paindizzinessfast heart rateshortness of breathunexplained fatiguecold sweatsdifficulty breathing It’s also a good idea to visit a doctor if you haven’t had your blood pressure or blood cholesterol measured in a long time.

Diagnosing atherosclerosis and arteriosclerosis

To diagnose atherosclerosis and arteriosclerosis, a doctor will use the following tests:Physical exam: A physical examination allows a doctor to identify physical symptoms, such as fast heart rate.Blood pressure: Your blood pressure can indicate if arteriosclerosis has developed or if you’re at risk of atherosclerosis.Family history: To determine your risk of developing either condition, a doctor will ask questions about your family history.Blood tests: This allows a doctor to check for risk factors for atherosclerosis, including high blood cholesterol, high triglycerides, and diabetes.

Recovering from atherosclerosis and arteriosclerosis

It’s possible to reverse atherosclerosis and arteriosclerosis before they lead to more serious conditions. In both cases, it will involve healthy lifestyle habits and medication. These treatments will help lower plaque and inflammation in the arteries. When managed properly, atherosclerosis can be reversed within 1 or 2 years. If atherosclerosis and arteriosclerosis have progressed to chronic disease, you many need surgery. The procedure depends on the disease and arteries affected. Examples include:percutaneous coronary interventioncoronary artery bypass graftingcarotid endarterectomyangioplasty

Takeaway

Atherosclerosis and arteriosclerosis are often confused with each other, but they’re different conditions. Atherosclerosis happens when your arteries become narrow due to a buildup of plaque. It’s caused by inflammation in the arteries. Atherosclerosis is a type of arteriosclerosis, a condition in which your arteries become stiff. Arteriosclerosis is caused by elastin fibers in your arteries losing elasticity. Both conditions cause no symptoms until they progress into serious conditions. So, the best way to prevent them is to practice healthy lifestyle habits and visit your doctor regularly. Last medically reviewed on October 5, 2022

How we vetted this article

SourcesHistoryHealthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. We avoid using tertiary references. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.García-Mateo P, et al. (2020). Effects of resistance training on arterial stiffness in healthy people: A systematic review.
jssm.org/jssm-19-444.xml%3EFulltext Heinz A. (2021). Elastic fibers during aging and disease.
sciencedirect.com/science/article/pii/S1568163721000027?via%3DihubMitchell GF, et al. (2020). Arteriosclerosis: a primer for "In Focus" reviews on arterial stiffness.
ncbi.nlm.nih.gov/pmc/articles/PMC7737359/Pahwa R, et al. (2022). Atherosclerosis.
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ahajournals.org/doi/full/10.1161/HYPERTENSIONAHA.121.18075What is atherosclerosis (2020).
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ncbi.nlm.nih.gov/pmc/articles/PMC4660469/Our experts continually monitor the health and wellness space, and we update our articles when new information becomes available. Current Version Oct 5, 2022 By Kirsten Nunez Edited By Roman Gokhman Medically Reviewed By Avi Varma, MD, MPH, AAHIVS, FAAFP Copy Edited By Sarah Mills Share this articleMedically reviewed by Avi Varma, MD, MPH, AAHIVS, FAAFP — By Kirsten Nunez on October 5, 2022

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