Addiction - a craving for the drug and its compulsive use to regulate one's mood - does not.

The counter argument is that in fact problem compulsive use of the internet is a symptom of other conditions.

Evidence of his compulsive use can be seen on his twitter home page, here.

Addiction is characterized by drug craving, compulsive use and relapse after withdrawal.

Addiction: A compulsive use of a substance even though the substance causes harm.

It is due to a problem in another area of the brain that causes people to develop a pattern of abnormal, compulsive use.

There's a craving for the drug or compulsive use of it.

Drug addiction is the compulsive use of a substance, despite its negative or dangerous effects.

Video game addiction is the excessive or compulsive use of computer and video games that interferes with daily life.

"It's about the compulsive use of a substance that's taken over your life."