"I do believe there are people who have an addictive personality," he says, "and I'm probably one of them."

People with an addictive personality tend to plan their lives around the addiction.

The plan was only one rock a day, but Denny's got such an addictive personality.

I do not have an addictive personality and only take as prescribed.

I've got an addictive personality - people cant get enough of me.

"I never considered myself to have an addictive personality," she said.

People with addictive personalities are very sensitive to emotional stress.

People with addictive personalities find it difficult to manage their stress levels.

Another form of addictive personality is problematic cell phone use.

There is an ongoing debate about the question of whether an addictive personality really exists.