Mild heart attack is often mentioned to as unstable angina. The risk component engaged with gentle heart attack is much smaller as in evaluation to a usual heart attack. The major origin of gentle heart attack is either decrease in the allowance of oxygen provided to the heart or blockage of the body-fluid vessels. (Erhardt 2002)Causes and Symptoms of Mild Heart Attack The most widespread symptom of gentle heart attack is left-sided barrel agony, which may proceed over to centered part of the barrel, neck, top back and jaw as ...