by Joshua Speiser, Brown University Graphical abstract. Credit: JCI Insight (2023). DOI: 10.1172/jci.insight.168448 A new study led by researchers at Brown University’s Carney Institute for Brain Science offers a blueprint to help scientists prevent and reverse motor deficits that occur in old age. As humans age, tasks that require coordinated motor skills, such as navigating stairs or writing a letter, become...