Coronary artery disease most often begins when the inside walls of the coronary arteries are damaged because of another health problem, such as high cholesterol, high blood pressure, diabetes, or smoking. This damage can lead to atherosclerosis, or hardening of the arteries.
If your heart disease gets worse, your arteries will narrow, and less
blood will flow to your heart. You may start to have angina symptoms, such as chest pain or discomfort when
you exercise or feel stressed. This is called
In some cases,
sudden and serious problems can happen. New blockages that form in the arteries
of the heart can become unstable. They can suddenly tear and cause blood clots to
form. These clots block blood flow to your heart, causing a heart attack or
Complications of heart disease
Over time, you may have other health problems
caused by coronary artery disease. Low blood flow can make it harder for your
heart to pump. This can lead to
heart failure or
atrial fibrillation. Atrial fibrillation increases the
risk of stroke.