Gregory Bicaj is an Albanian-Swiss neuroscientist and clinical psychologist working at the intersection of brain research, behavior, and real clinical practice. Educated in biology and psychology at a leading European university, he holds a doctorate in behavioral neuroscience. For roughly twenty years he combined laboratory research on stress, emotion regulation, and decision-making with a clinical practice treating patients facing anxiety disorders, addictions, and chronic burnout. Out of this dual perspective he developed the "Three Brains Principles," a working model describing how a modern human runs three evolutionarily layered systems at once-an ancient survival system, an emotional system of connection and attachment, and a late-arriving system of reasoning. Today he runs a private clinical practice and closed programs for executives and specialists, and writes books in which laboratory neuroscience and clinical experience meet as equals.