Calm CEO David Ko on stress, burnout, and leading with vulnerability

Executive overview

Most CEOs quietly admit to high stress while projecting confidence to their teams — Calm's own survey found 47% of C-suite leaders are stressed, and 28% say they're under major stress right now. David Ko, outgoing CEO of mental health app Calm, argues that stress itself isn't the enemy: short bursts build resilience, but chronic stress without relief becomes burnout. The fix isn't eliminating stress — it's building in micro-pauses and modelling vulnerability from the top.

Good stress is a short sprint; burnout is a marathon you don't even want to start.

Why Calm's CEO is the most stressed CEO you'll meet

• Every second of every day, someone turns to Calm for help — Ko feels that pressure constantly.
• Calm has 180 million+ downloads across 190 countries and 7 languages, with ~48 million lives covered through payer partnerships.
• Ko stepped down as CEO to pursue mental health impact at a larger, more systemic scale — policy, employers, payers, and apps must work together.
• He views vulnerability in front of his team as a strength, not a weakness: he tells them when he's stressed and when things aren't going well.

The C-suite mental health gap

• Calm surveyed 250+ C-suite executives: over 80% initially said they were fine.
• When pressed, 47% admitted to significant stress; 28% said they were under major stress right now.
• Nearly 50% said they were considering stepping down.
• Most said they hadn't shared their stress with employees — they didn't feel safe having those conversations publicly.
• Mental health programs only work if leadership embraces them; without that, they're just another benefit.

Good stress vs. burnout

• Good stress (eustress) comes in small doses: drives creativity, urgency, teamwork, and purpose.
• Burnout happens when stress becomes chronic — back-to-back pressure with no recovery and no clarity on the "why."
• Leaders compound stress by constantly adding to employees' workloads without removing anything.
• The goal isn't a stress-free workplace — it's more good-stress moments than bad ones.

The ROI of mental health at work

• CFOs increasingly demand measurable returns from wellness programs.
• Key indicators: absenteeism rates, accelerated attrition, and their root causes.
• Organizations that address stress and burnout directly see those metrics improve.
• Stress and burnout are now rampant across organizations — framed as "not just a benefit" but a business issue.

The prevention vs. intervention problem

• Healthcare systems default to intervention — acting after a problem appears.
• Apps like Calm target prevention: keeping people in the "green" before they hit crisis.
• Ko's color-coded framework: green (doing fine — self-guided tools sufficient), yellow (hybrid approach: app + human support), red (needs immediate professional care).
• Current system is "a mush" where people end up in the wrong lane; matching care level to need is the goal.
• Calm Health integrates with payer and provider networks rather than building its own therapist layer — the aim is simplicity, not more complexity.

AI, chatbots, and mental health data

• Two years ago the AI conversation was "when will it replace us?"; now it's "how can it support us?"
• People are already using general chatbots (e.g., ChatGPT) as de facto mental health tools — access and affordability drive this.
• Ko has held back on AI chatbots at Calm due to data obligations: millions of users trust Calm with sleep, anxiety, and emotional data.
• HIPAA and high-trust compliance matter — there's a real difference between consumer apps and clinical-grade tools.
• AI can help Calm scale, but humans must give it meaning.

The smartphone paradox and practical micro-tools

• Calm asks users to put their phone down — then asks them to open the app. Ko acknowledges the contradiction openly.
• His rule: avoid anything that causes stress or anxiety in the last hour before bed (work email is the main culprit).
• Three W's for micro-breaks with no spare time: Window (3 seconds — look outside to reset), Water (20 seconds — grab a glass), Walk (2 minutes — a lap around the floor).
• Meditation doesn't require bells and incense — a single deep breath counts.
• Put the phone away at dinner; be present with the people around you.

Gen Z, technology, and generational expectations

• An older executive asked Ko: "Is Gen Z too soft?" Ko turned it around: that executive couldn't take his desktop home — Gen Z carries work everywhere, 24/7.
• Technology shifted what's expected of workers; both sides need to recognise how fundamentally that has changed.
• Mental health doesn't "turn on" at 18 — it starts earlier; Calm now works with universities and middle schools.
• Schools have PE classes but almost no mental health education; Ko argues that needs to change.

Social media, global fragmentation, and what's next

• Social media is part of the youth mental health problem — not the whole cause, but a real contributor.
• The mental health conversation in the US is more open than ever; globally, it remains highly fragmented (e.g., still taboo in South Korea).
• Policy and education must get more involved alongside apps and employers.
• Ko's next move: work at the intersection of employers, payers, providers, apps, and policy — not one company alone can solve this.