Greater excitability of the "amygdala" may explain why...
The amygdala is fundamental for deciphering feelings, especially threatening stimuli. Outer stimuli travel to the amygdala by means of two distinctive pathways, which supplement one another. A short, uncertain course originates from the thalamus, which gets sensory stimuli and enables us to get ready for potential threat before knowing precisely what the threat is. A more exact course originates from the medial prefrontal cortex, the zone of the mind that is associated with the final phase of dread, in which the cerebrum responds to risk and picks a plan.