David Ko, CEO of Calm until recently, reveals why the world's biggest wellness app leader calls himself 'the most stressed out CEO you will ever meet'—and why he's stepping down to pursue mental health at a larger scale. He breaks down the paradox of using technology to heal what technology breaks, the difference between resilience-building stress and burnout, and practical micro-breaks for overwhelmed leaders. Chronic stress leads to burnout when pressure becomes relentless without recovery; good stress in small doses builds resilience and drives purpose, while bad stress without understanding its 'why' spirals into distress. CEOs and leaders experience significant unreported stress—47% of 250 C-suite executives admitted to being stressed after initial denial, and 50% considered stepping down—yet rarely share vulnerability with employees.