Heart (IMAGE) University of Bonn Caption Heart of a healthy (left) and a diseased mouse (cross sections). Connective tissue inclusions (right, red) make the diseased heart less efficient. Credit © Kenichi Kimura/UKB Usage Restrictions Please use this picture only in connection with the press release. 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.