Gamblers seen around the world can be classified under a few basic categories. For professional gamblers, gambling is their major source of income. Casual social gamblers engage in gambling activities for the purpose of entertainment while serious social gamblers involve in gambling with greater sincerity. Some gamblers engage in gambling activities for escaping from the stress in their life. In this case, it can lead them to compulsive gambling wherein a person feels compelled to engage into gambling activities for which he/she sacrifices his family and career.