< Back to All Videos thirdAGE > Flu and Heart Attack Risk Up Next... 10 Dog Flu Outbreak Dog Flu Outbreak Ear Infections and PCV Vaccines Fighting the Flu Loading the player ... Allergy + Respiratory Heart Health Flu and Heart Attack Risk Severe influenza may increase the risk of heart attack, new research suggests. Related Videos Dog Flu Outbreak Ear Infections and PCV Vaccines Fighting the Flu Treating Chronic Respiratory Diseases