Angina pectoris occurs when the heart muscle is no longer supplied with enough oxygen. There is a distinction between stable and unstable angina pectoris.
In an angina attack, there is a temporary shortage of oxygen to the heart. This angina attack may last a few seconds, or continue for several minutes.
Stable angina pectoris is often caused by physical or mental stress. Unstable angina can occur more frequently with more severe symptoms, even while at rest.
Angina pectoris symptoms include: chest tightness, pain between the shoulder blades, numbness in the arm (usually the left), nausea, sweating, sudden shortness of breath. The recommended angina pectoris therapy is a low fat diet, exercise, stress reduction, quitting smoking and weight normalization.