When people hear the word "addiction," they often picture things that are extreme and obviously harmful like gambling and drugs. However, addiction does not always come in such dramatic forms--in fact, most people exhibit several if not all of the symptoms of addiction in certain aspects of their lives. According to the Diagnostic and Statistical Manual of Psychological disorders, one of the primary distinctions between an impulse and an addictive disorder is the presence of a craving that precedes a relapse or indulgence in the given substance or activity. The discovery that addicted gamblers have physical cravings is what eventually led gambling to being moved from the impulse control disorders category to the addictive disorders category. Impulse control disorders (like pyromania, for example) are also categorized by more sporadic behavior, while addictive behaviors like drinking and smoking often function as coping strategies. I...