How Can Posttraumatic Stress Disorder Cause Biological Reactions That Make

How can posttraumatic stress disorder cause biological reactions that make the disorder more persistent?

A) The increase in sympathetic nervous system activity can decrease the functioning of the parasympathetic nervous system.
B) The increase in stress hormones shrinks the hippocampus, which is a structure that contributes to controlling the body's stress hormones.
C) The increase in norepinephrine decreases the number of receptors that help calm the body.
D) The increase in cortisol levels causes the body to deplete itself of norepinephrine.

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