Angina pectoris is mostly seen in middle-aged and elderly people over 40 years old, manifesting as pain behind the sternum, which can radiate to the neck and throat, left shoulder, left arm and fingers. Patients with angina tend to have a history of significant exercise or strenuous activity and present with tingling and stuffiness in one side of the chest or shoulder. The pain is wandering and worsens with breathing, coughing and activity. Angina attacks usually last from a few minutes to more than 10 minutes and are relieved by sublingual nitroglycerin and other nitrate drugs. The bouts of angina usually do not require medication and can be relieved with rest.