Hallways at the world-famous Steadman Clinic are lined with framed, autographed jerseys of star athletes who have had surgery here, including John Elway, Mario Lemieux and Alex Rodriguez. The clinic and its associated Steadman Philippon Research Institute attract world-class talent from all fields – including U2 drummer Larry Mullen Jr., who joined the institute’s board after he was a patient here – but perhaps its top recruit was a renowned scientist researching ways to help injuries heal faster and slow down the way our bodies age.