When we talk about the 6 signs of a heart attack a month before it happens, we are referring to a collection of common symptoms that, in isolation, may seem benign, but together can indicate heightened cardiovascular risk. 6 Signs of a Heart Attack a Month Before It Happens While the symptoms of a heart attack may appear to come on suddenly, research suggests that more than 40% of patients experience early warning signs – called prodromal symptoms – beforehand. Recognize the 6 early signs of a heart attack that can appear a month before. Don't ignore these warning symptoms—stay informed and protect your heart health. Recognize the 6 signs of heart attack a month before for early detection and prevention. Visit our blog for more information.