One Brain Chemical May Be Key to Breaking a Habit, Study Finds

2026-06-16T18:30:03.000Z According to a new study involving mice, the behavioral flexibility behind our reactions to disappointment may be reliant on a single chemical in the brain. Read on below – and follow ScienceAlert for more evidence-based health news.. Explore this storyboard about The Brain, Life Sciences by ScienceAlert on Flipboard.