David Ko is the CEO and board member of Calm, the #1 app for sleep, meditation, and mindfulness. A former healthcare executive and tech operator, David previously served as COO of Zynga, held senior roles at Yahoo!, and founded a healthtech company acquired by Calm. He is the bestselling author of Recharge, and has been recognized by TIME, LinkedIn, RockHealth, and NYU Stern for his leadership in digital health.

What you’ll learn:

How David transitioned from gaming to healthcare through mission-driven insight
The real story behind Calm’s evolution from sleep and meditation to global mental health
Why David uses “battery level” as a tool for checking in at work
How leaders can model vulnerability without sacrificing authority
Why burnout stems from poor workload management, not just long hours
The power of shared purpose in turbulent times
How Calm uses rituals like Jay Shetty meditations and Zoom-free days to reinforce its culture
Why sleep, diet, and presence are core to David’s leadership performance
How transparency builds trust even when the news isn’t good
Why the conversation around mental health needs to start at the top

Some takeaways:

➡️ Stress is not the problem. Unchecked, unacknowledged stress is. Good stress can fuel resilience and performance.
➡️ “How’s your battery?” is a more meaningful check-in than “How are you?”
➡️ Burnout often comes from lack of clarity and excessive task stacking, not too many hours.
➡️ Leaders must explain the why behind priorities and remove as much as they assign.
➡️ Transparency about culture survey results builds psychological safety.
➡️ Rituals like 90-second meditations help reset and re-center teams.
➡️ Leadership can be lonely. Trusted colleagues make a critical difference.
➡️ Presence matters more than hours. Back-to-back meetings are not a badge of honor.
➡️ Sharing your own mental health journey is not weakness. It’s how resilient teams are built.
➡️ “We take better care of our phone batteries than our mental health batteries.” Time to change that.

Where to find David Ko:

LinkedIn: https://www.linkedin.com/in/daveko/
Calm: https://www.calm.com
Book: Recharge: Boosting Your Mental Battery One Conversation at a Time
Podcast: Recharge (available on major platforms)

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