Chronic fear or anxiety can lead to structural and functional changes in the brain that perpetuate impaired planning and decision-making.

Long-term exposure to fear, such as in chronic stress or anxiety disorders, doesn't just transiently alter brain activity; it can cause lasting changes. Studies using neuroimaging have shown that chronic fear can lead to hypertrophy (enlargement) of the amygdala and reduced gray matter volume in the prefrontal cortex and hippocampus. These structural changes can make individuals more susceptible to fear responses and less capable of regulating their emotions or engaging in effective long-term planning. The brain becomes wired for hypervigilance and immediate threat detection, making it challenging to break free from cycles of fear-driven avoidance and engage in deliberate, forward-looking behaviors.