A compulsion is an overwhelming desire to do something. An addiction is a physical or chemical dependence on a substance or behaviour.

Two key differences between compulsion and addiction:

• Pleasure. Compulsive behaviours rarely result in feelings of pleasure. People with addictions desire the substance or behaviour because they expect to enjoy it.
• Awareness: People with compulsive disorders are typically aware of their behaviours and bothered by the lack of logical reason for doing them. People with addictions are unaware of or unconcerned about the negative consequences of their actions.

• Compulsive overeating is the inability to control one's amount of nutritional intake, resulting in weight gain.
• Compulsive shopping is done to the extent that it impairs the shoppers' lives, leaving them financially unstable.
• Compu...