The autonomic nervous system controls involuntary processes in the body. Meaning you don't control it. It reacts or responds based on what is happening around you and to you.
Stress floods the pre-frontal cortex with cortisol when under stress. This often why people do no remember details of an event.
The frontal lobe of the brain is in charge of executive functioning which includes organization/planning. When flooded with stress chemicals, it does not work as efficiently.
Part of the executive functioning of the frontal lobe is to help us translate our thoughts into words formed when speaking. When this area is flooded with stress chemicals, the frontal lobe has to work that much harder to achieve this.
© Peaceful Warriors/Susie Sullivan 2022