The reduced blood flow is often caused by a buildup of fatty deposits known as plaque inside the coronary arteries. When the heart works harder, such as during physical activity or emotional stress, the heart muscle may not receive enough oxygen-rich blood, which can lead to angina symptoms.

Common Symptoms

Symptoms of angina may include:

• pressure or tightness in the chest
• burning or aching pain in the chest
• pain that may spread to the neck, jaw, shoulders, arms or back
• shortness of breath
• fatigue or weakness
• a feeling similar to indigestion

Some people may experience symptoms during physical activity or emotional stress, while others may notice symptoms occurring at rest.

Possible Causes

Angina most commonly develops due to narrowing of the coronary arteries caused by plaque buildup. Risk factors that may contribute to this process include high blood pressure, high cholesterol, diabetes, smoking, increasing age and other conditions that affect the heart and blood vessels.

Reference

Content adapted from information provided by the Public Health Agency of Canada:https://www.canada.ca/en/public-health/services/diseases/heart-health/angina.html