Psychodynamic and personal opinions explain for addiction through emotional shocks through childhood which has left a person with problems as an adult, together with other personality attributes and/or other disorders, and inherited psychological temperaments. Certain people, due to a variety of reasons, are inclined to developing an addiction, such as heroin, gambling and sex. They may never develop any kind of addiction throughout their lives. However, when one or more right stressors affect the person at a crucial time, the person is more prone to develop an addiction. Even if a person only drinks alcohol occasionally, he may develop an addiction to alcohol if he increases consumption continuously. The same hypothesis remains for Internet addiction. Given the right combination of time, person and event, addiction can take place. Neither the activity nor subject is important. The person is the most critical to the situation.