Violence or natural disasters can cause trauma in young people. Trauma is hurt or harm. It can be hurt to a person's body. It can be harm to a person's mind. Community members play important roles. They help children who experience violence or disaster. They help children cope with trauma. They help protect children from further trauma. They also help young people avoid or overcome emotional problems. These problems can result from trauma. There are two types of trauma - physical and mental. Physical trauma includes the body's response to serious injury and threat. Mental trauma includes frightening thoughts and painful feelings. They are the mind's response to serious injury. Mental trauma can produce strong feelings. It can also produce extreme behavior; such as intense fear or helplessness, withdrawal or detachment, lack of concentration, irritability, sleep disturbance, aggression, hyper vigilance (intensely watching for more distressing events), or flashbacks (sense that event is reoccurring).