There are four basic features of typical angina symptoms: pain site, relationship between pain and movement, pain characteristics and pain duration. Site of pain: Typical angina is located behind the sternum and can radiate to both sides of the chest, both upper arms (common on the left side) as far as the wrist, and the neck and palate. It can also radiate to the back, but is uncommon. Relationship between pain and exercise: In most cases, myocardial oxygen consumption increases during exercise (or other stressful situations), with the result that angina is triggered and rapidly relieved after rest. Emotional excitement, full meals, etc. can also trigger angina pectoris. In some patients, angina occurs even in a quiet state, suggesting severe coronary artery disease. Pain characteristics: The severity of this symptom varies greatly and can be mildly limited discomfort or very severe pain. Many patients have no significant pain, but only chest tightness, chest pressure or cramping sensation. Duration of pain: Angina induced by physical activity usually resolves on its own within 1-3 minutes after interruption of the activity, however, it can last more than 10 minutes after very strenuous activity. Emotionally induced angina is slower to resolve than physically induced angina.