AUTHOR=Fukuda Norio , Granzier Henk , Ishiwata Shin’ichi , Morimoto Sachio TITLE=Editorial: Recent Advances on Myocardium Physiology, Volume II JOURNAL=Frontiers in Physiology VOLUME=14 YEAR=2023 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2023.1170396 DOI=10.3389/fphys.2023.1170396 ISSN=1664-042X