5. Sweating
As bizarre as it sounds, sweating is an important symptom of angina and heart attacks. According to recent studies, it is suggested that profuse sweating that isn’t accompanied by fever should prompt medical care for the possibility of a heart attack. The explanation for that phenomenon is that, when the body faces mortal danger -like that of a heart attack-, it triggers the sympathetic nervous system response, also known as fight or flight response, and one of its manifestations is sweating, as well as the impending sense of doom that the patient experiences along with the chest pain.
