The average victim of a SCAD heart attack, when a tear forms in a blood vessel in the heart, is just 42 and 10-20 percent of them have just given birth. The artery wall has three layers and when a tear occurs, blood is able to pass through the innermost layer and become trapped and bulge inward. This narrows or blocks the artery and can cause a heart attack because blood flow cannot reach the heart muscle. Spontaneous coronary artery dissection (SCAD) is an uncommon occurrence, but because it occurs spontaneously, it’s important to recognize the symptoms and get treatment immediately.