Over the last 15 years, research into various online addictions has greatly increased. Alongside this, there have been scholarly debates about whether internet addiction really exists. Some may argue that because internet use does not involve the ingestion of a psychoactive substance, then it should not be considered a genuine addictive behavior. However, the latest (fifth) edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) re-classified ‘Gambling Disorder’ as an addiction disorder rather than a disorder of impulse control as it was in the past. The implications of this reclassification are potentially far-reaching. The most significant implication is that if an activity that does not involve the consumption of intoxicants (i.e., gambling) can be a genuine addiction accepted by the psychiatric and medical community, there is no theoretical reason as to why other problematic and habitual behaviors (e.g., shopping, work, exercise, sex, video gaming, etc.) cannot be classed as a bona fide addiction.