The biological factors primarily imply that someone could be predisposed to developing PTSD should they experience a traumatic event are:
1. Reduced levels of cortisol
2. Increased sensitivity of the HPA negative feedback inhibition.
3. Hypersensity of the glucocorticoid receptors
PTSD is the short way of writing the Posttraumatic Stress Disorder. Cortisol is the primary stress hormone and the reduction in the availability foof this hormone indicates that a person is predisposed to Posttraumatic stress disorder.
The Hypothalamic-pituitary-adrenal hormone is another biological factor that is known to be a stress hormone and when it begins to become increasingly sensitive, then it is indicative of a predisposition to PTSD.
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