Separation anxiety disorder is marked by intense anxiety or panic when separated from parents or other loved ones. This disorder can be so extreme that it disrupts normal activities. Often children with separation anxiety disorder will cling to their parents or stay close wherever they go. They may refuse to play outside, spend the night with a friend, or even go on errands. This disorder is also characterized by physical ailments, such as headaches, nausea and vomiting, and even heart palpitations and dizziness.
Separation anxiety can explain why many children refuse to attend school.
Conduct disorders are thought to be single largest group of psychiatric illnesses in young people. Often beginning before teen years, the symptoms of these problems are frequently mistaken for juvenile delinquency or the turmoil's of growing up. Some common behaviors include stealing, consistent lying, cruelty, deliberate destruction of property, fighting with or without weapons, or even rape. There are many studies into the biological, psychological and sociological causes of conduct disorders, but like many other disorders, conduct disorders are probably caused by a number of factors. Conduct disorders will not go away with age, and therefore treatment is critical.