A new study reveals how the brain’s natural ability to adapt to stress may also contribute to the development of anxiety disorders. Researchers found that a specific neural mechanism, previously linked to resilience, can become dysregulated under prolonged stress, potentially increasing vulnerability to excessive worry and fear responses. The findings challenge conventional views on stress adaptation and suggest that what helps the brain cope in the short term might backfire over time. Experts say the discovery could lead to more targeted treatments for anxiety by addressing this underlying biological process.