Leaders have long recognized the importance of a healthy workforce to driving economic productivity. But they might be surprised at the value at stake—and at the size of the employee population in less-than-fine fettle. In this episode of McKinsey Talks Talent, McKinsey talent leaders and Global Leader of the McKinsey Health Institute Lucy Pérez speak with Global Editorial Director Lucia Rahilly about new research on employee health: what it means, its vital link to value, and the steps leaders can take to create workplaces where employees thrive—and competitive advantage rises.