Dave Gieselman

Dave Gieselman is a former chef who now works with leaders, creatives, and high performers as a speaker, coach, and applied physiology expert. With three decades in professional kitchens before transitioning to high-performance coaching full-time, Dave knows how to operate in environments where clarity is non-negotiable and stress is constant.

After facing addiction and catastrophic burnout early in his career, yet unwilling to leave professional kitchens, he became obsessed with high-speed nervous system regulation in zero-error environments and the physiology that enables laser focus and fluid decision-making under pressure. His work blends breathwork, neuroscience, and flow-state principles into practical tools people can apply immediately to reduce stress and improve their quality of life.

Dave integrated the Oxygen Advantage into his methodology because it is precise, measurable, and scientifically grounded. It reinforces the fundamentals that matter most: nasal breathing, functional mechanics, and CO2 tolerance, all of which improve recovery, sleep, and stress resilience for those who need to lead effectively.

Dave teaches in Los Angeles, California (USA) and offers coaching both in-person and online. He primarily works with high-functioning leaders, professionals, and creatives who are done running on caffeine and cortisol and are ready to build real capacity. Clients seek him out when they want more calm, sharper focus, and a nervous system they can trust under pressure.