Nancy Rothbard, a professor of management at the University of Pennsylvania’s Wharton School, draws a distinction between workaholism and working long hours. She explains the health consequences of being addicted to your work. She also gives practical advice for managing work addiction, whether it’s you who’s suffering, your direct report, boss, peer, or partner. Rothbard is the coauthor of the HBR article "How Being a Workaholic Differs from Working Long Hours — and Why That Matters for Your Health."

Dan Cable, a professor of organizational behavior at London Business School, explains why people often lose their enthusiasm for their work and how leaders can help them get it back. He says we shouldn’t forget that as humans we all need to explore and have purpose — and without that, we languish. Cable offers ideas for restoring people’s passion for their jobs. He’s the author of “Alive at Work: The Neuroscience of Helping Your People Love What They Do.”

Professors Michael Toffel, of Harvard Business School, and Aaron Chatterji, of Duke’s Fuqua School of Business, discuss the emerging phenomenon of CEO activism. They explain how political polarization in the U.S. and employee expectations around company values are pushing corporate leaders to enter into controversial political and social debates. Toffel and Chatterji are the coauthors of the HBR article “Divided We Lead.” We also hear from PayPal CEO Dan Schulman, who talks about standing up for transgender rights and what he tells other CEOs who ask his advice on taking on an activist role.

Rasmus Hougaard and Jacqueline Carter, of the global consulting firm Potential Project, make their case for mindfulness, selflessness, and compassion in leadership. Their survey of 30,000 leaders showed those characteristics are foundational — and often missing from leadership development programs. Practicing self-awareness, they say, leads to more focused and more people-focused organizations. They’re the authors of the new book, “The Mind of the Leader: How to Lead Yourself, Your People, and Your Organization for Extraordinary Results."

Dominic Barton, the global managing partner of McKinsey&Company, discusses the firm’s sustainability efforts. He talks about the wake-up call he got about sustainability and how he tries to convince CEOs hesitant to make it part of their business model that doing so will improve company performance. He says he sees companies thinking about the environment. “But the speed and scale of what we need to do — I don’t think it’s sufficient.”

Drew Gilpin Faust, the president of Harvard University, talks about leading the institution through a decade of change, from the financial crisis to the Trump era. Faust discusses how communicating as a leader is different from communicating as an expert, the surprising ways her study of U.S. Civil War history prepared her for the top job, and what it's like to be the first female president in the University's four-century history.

Tsedal Neeley, a professor at Harvard Business School, and Paul Leonardi, a management professor at UC Santa Barbara, talk about the potential that applications such as Slack, Yammer, and Microsoft Teams have for strengthening employee collaboration, productivity, and organizational culture. They discuss their research showing how effective these tools can be and warn about common traps companies face when they implement them. Neeley and Leonardi are co-authors of the article "What Managers Need to Know About Social Tools" in the November-December 2017 issue of Harvard Business Review.

Kenneth Frazier, the CEO of the pharmaceutical company known as MSD outside of North America, discusses his upbringing and how it influences his leadership as chief executive. He is one of the few African-American CEOs in the Fortune 500, and shot to prominence after resigning from a council advising the Trump White House. Frazier discusses the importance of values in leadership and how Merck thinks about R&D and drug prices.

Scott DeRue, the dean of University of Michigan's Ross School of Business, says the old model of business school education is gone. It's no longer good enough to sequester yourself on campus for two years before heading out into the world of commerce. DeRue discusses how the perceived value of an MBA education is changing in the digital era, and how MBA programs are innovating in response to individual and company demands.

What should you do when you become the boss? HBR's new advice podcast Dear HBR: has the answers. In this bonus episode, Dear HBR: co-hosts Alison Beard and Dan McGinn answer your questions with the help of Harvard Business School professor Alison Wood Brooks, an expert on behavioral insights. They talk through what to do when your direct reports are older than you, how to be a likeable leader, and what to say if you're not ready to be in charge.