When Japan lifted its COVID-19 state of emergency, doctors faced an urgent question: could patients whose blood sugar control had deteriorated during lockdown recover once normal life resumed? A new study from Kyoto University suggests the answer depends heavily on what happens next—and the findings offer a roadmap for those still struggling.Researchers tracked 221 outpatients with glucose intolerance—the metabolic conditions that include diabetes—across three distinct periods: before, during, and after Japan's pandemic restrictions. What they discovered was not a uniform story of damage, but a divergence. Some patients saw their HbA1c levels and body composition improve once daily life resumed, while others continued to worsen. The difference, the researchers found, came down to behavior.