Is heart disease reversible?

(NewsNation) — The leading cause of death in the U.S. is heart disease, but sometimes it's a silent killer. Not all who have it show symptoms until the worst - such as a heart attack - happens.What is heart disease?Heart disease encompasses multiple conditions affecting the heart. The most common type is coronary artery disease, according to the Centers for Disease Control and Prevention.Heart disease, at times, can be symptomless until a heart attack, arrhythmia, or heart failure occurs.