About
Oscar Trelles is the author of The Human OS Manual, Available October 15, 2026 with Kindle pre-order open now. A systems-based alternative to self-improvement showing why lasting change requires understanding the operating conditions beneath energy, behavior, recovery, relationships, performance, and aging.
Why this book
Most people are not failing because they lack discipline. They are trying to solve connected human problems in isolated pieces, while the operating conditions underneath keep producing the same result.
The Human OS Manual, Available October 15, 2026, follows that pattern into physiology, recovery, behavior, environment, adaptation, and healthspan.
Background
Oscar spent more than two decades inside performance systems: technology, advertising, market research, sales leadership, cybersecurity, entrepreneurship, and human performance.
Across those environments, the same question kept returning: what allows a complex system to function, and what makes it increasingly expensive or fragile to sustain?
After experiencing severe burnout, that inquiry moved closer to the human body itself. Oscar spent fifteen years rebuilding his health, resilience, and operating rhythm while studying physiology, recovery, behavior, environment, and adaptation.
His current work develops the Human OS across healthspan, leadership, work, environments, and the systems people build around themselves. The Human OS Manual brings those threads together into a systems-based account of how people function, change, recover, perform, and age.
Applied work
Through Founder Systems Advisory, Oscar works selectively with founder teams navigating growth, complexity, or transition, connecting strategy, commercial direction, founder alignment, and leadership capacity.
Through advisory work, Breathing Flame, and the Reverse Aging Challenge, Oscar applies the Human OS across leadership, recovery, adaptive capacity, healthspan, and the operating conditions surrounding change.