AUTHOR=Daniele Simona , Giacomelli Chiara , Loprinzi Paul D. , Franzoni Ferdinando TITLE=Editorial: Physical Activity: Epigenetic and Metabolic Regulation of Brain Aging JOURNAL=Frontiers in Aging Neuroscience VOLUME=12 YEAR=2020 URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2020.00195 DOI=10.3389/fnagi.2020.00195 ISSN=1663-4365