Distended Heart (IMAGE) Georgia Institute of Technology Caption On the left, an illustration of a healthy heart, on the right, a heart in heart failure. The walls of the heart are thin, making its circulation of blood too weak. Credit Creative Commons by Scientificanimations.com (Attribution-Share Alike 4.0 International) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.