text:  It's Morning Edition from NPR News. I'm Layla Faldin. And I'm Steve Inskeep. Kellen Matthews was a teenager when he tried opioids and got addicted. When he decided to get sober, he started running, which helped his recovery so much that he started a running group to help other people with all kinds of recovery. Buffy Gorilla reports from Philadelphia. Kellen Matthews is smiling, dressed in shorts and a tank, with the Recovery Run Club logo printed across the chest.