Cross addiction is a term used to describe a condition when two addictions occur in the same person. It occurs because a person who has one addiction is more likely to develop another addiction. It doesn’t always happen in the same fashion for every person though. Cross addiction doesn’t always consist of a person developing two different substance use disorders. In some cases, the person may have suffered from alcoholism and then developed a gambling or sex addiction. Eating disorders can be another form of addiction. Essentially, it is accepted that those who have suffered from one addiction or associated mental health disorder are more susceptible to the formation of other addictions or mental health issues.