How does the brain turn stress into a racing heart?

How does the brain turn stress into a racing heart? 

How does something you see or hear become a physical stress response? A UCLA-led study mapped a part of the brain that helps connect information from our surroundings with systems controlling things like hormones, heart rate, and other automatic body responses. 

The findings offer a closer look at how the brain coordinates our response to stress. 

Read the entire paper: Neural networks of the mouse visceromotor cortex