It must affect many people, be accepted as legitimate, and
"be created through a political process".
Public policy<span> is the way a legislature keeps up order
or addresses the requirements of its nationals and can be found for various
segments, for example, health and law & order. Public policy<span> is
continually changing as the requirements of a general public change. These can
be changed by residents through verbal confrontations and votes.</span></span>
I believe the answer is: <span>genetic predisposition and childhood trauma
Genetic predisposition could affect the hormonal balance that could affect our response to stressful stimulus.
Childhood trauma could also make adults felt sudden anxiety on certain situations that remind them to the traumatic experience that felt during the childhood.</span>
