Angina is caused by a buildup of plaque on the walls of your coronary arteries.
This restricts the flow of blood and oxygen to your heart.
Angina is often described as a heavy feeling or tightness in your chest. Sometimes the feeling can travel down your torso to your arms, back or stomach. Some people experience angina as a dull ache - others as chest pain. You may also feel short of breath. Anxiety, stress or physical activity can bring on angina symptoms or simple things like finishing a big meal or colder temperatures.
Angina is not a disease. But it is a symptom of heart disease and a warning sign of heart attack. If you experience symptoms of angina you should seek medical assistance immediately.