At the University of Texas Medical Branch, researchers have proposed a new lens through which to understand one of addiction's most confounding mysteries — why people continue to seek drugs even as the costs become undeniable. The 'frustration brake failure' hypothesis suggests that repeated drug use may silence the biological signal that normally tells us when to stop, leaving frustration intact but stripped of its power to redirect behavior. It is not a discovery so much as a naming — a formal invitation to science to look where it has not yet looked.