Basic difference between avoidence tendency and hyper arousal tendency.

Particular things that remind a person of the tragic event can trigger avoidance symptoms.These symptoms may cause a person to change his or her personal routine and life.For example,after a bad car accident,a person who usually drives may avoid driving or riding in a car.This symptoms is not constant.

Hyper arousal symptoms are usually constant,instead of being triggered by things that remember one of the traumatic event.They can make the person feel stressed and angry.These symptoms may make it hard to do daily tasks,such as sleeping,eating or concentrating.