Oscar Trelles is the author of The Human OS Manual, a systems-based alternative to self-improvement. His work connects technology, performance systems, behavior, recovery, physiology, and healthspan to explain why people struggle to change when the conditions underneath remain unchanged.
Oscar Trelles has spent more than two decades across technology, advertising, market research, sales leadership, cybersecurity, entrepreneurship, systemic coaching, breathwork, and human performance. His work asks why intelligent, capable people often struggle to sustain change despite knowing what would help. The Human OS Manual brings those threads together into a systems-based account of energy, behavior, recovery, relationships, performance, and aging.