Scientists discover a specific brainstem circuit that triggers long-lasting anxiety

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journal Neuron provides evidence that a specific group of adrenaline-producing brain cells acts as a major driver of fear and anxiety behaviors. Activation of these cells produces immediate and long-lasting anxiety, and dampening their activity reduces stress responses. These findings suggest that targeting these specific neurons could offer a more precise way to treat anxiety disorders in the future. Anxiety disorders affect over 300 million people worldwide and significantly impact daily life. Current treatments, including various medications and therapies, can cause adverse side effects like insomnia, jitteriness, or cognitive impairment. Relapse is also common when patients stop taking their prescribed drugs. This ongoing challenge highlights a need for more specific and localized therapeutic targets within the brain. The physical symptoms of stress, such as elevated heart rate...