The moment that incited Mark Bertolini’s workplace revolution did not happen in the office, at a conference or even when he was thinking about his job—it occurred during a family vacation. But it was not a happy moment; in fact, it nearly killed him. In February 2004 Bertolini, then 47 years old, was on a skiing trip with his family in Killington, Vt. While speeding downhill, he collided with a tree and fell 30 feet down a ravine. The plummet fractured bones in his neck and back and severely damaged nerves in his arm. Yet he lived, gradually regaining mobility despite chronic pain. Not wanting to remain on pain medications for the rest of his life, he turned to yoga and mindfulness meditation, which teaches people to observe their thoughts, feelings and perceptions as they arise without judgment or resistance.