As we move to LetsRun.com second quarter century, we want to give you more reasons to visit the site daily. So we are launching a Live Training Talk series. Marius Bakken is the perfect first guest as this website was founded to try to spread the gospel of aerobic/threshold-based training, which Bakken has helped spread across the globe better than anyone. Catch it live at 1 pm ET on Monday or watch it on demand as an SC Member.