It is not uncommon to see people having heart attacks when they hear something shocking like someone close dying or due to some sudden fear. In a first scientists have come up with an explanation to why a sudden shock stress and fear may trigger heart attack and they found that multiple bacterial species living as biofilms on arterial walls could hold the key to such attacks. Hormones released during these events appear to cause bacterial biofilms on arterial walls to disperse allowing plaque deposits to rupture into the bloodstream the findings showed. Because the biofilms are closely bound to
