Types of the Cause-Effect Pattern People smoke for different reasons. They may smoke because their friends circle smoke. They maybelieve that by passing cigarettes around it will be easier for them to start afriendship or business. They may undergo much pressure because of economic andpersonal problems. They may be laid off or working but not making enough moneyto support their families. They may be homeless, or friendless. Some may be inbad marriages in which there is domestic violence. All these people may smoke to feel relaxed or to give them energy while going through a hard time.