Gambling Addiction or Problem Gambling is known as the “hidden addiction” because there are no visible signs. Unlike alcohol or drug addiction, you can’t visibly see the effects of someone’s gambling. For example, if someone has been drinking, you may smell alcohol, or they may be slurring their speech. Because of the lack of visibility, often those suffering from a gambling addiction can hide it longer than someone with an alcohol or drug problem. Usually, gambling addiction is discovered when there is a loss of accessibility to money and/or negative actions occur.