If I'm deeply involved in a behavior but am functioning well, am I an addict?

If I'm deeply involved in a behavior but am functioning well, am I an addict?

Marc Kern (Addiction Expert, Director of Addiction Alternatives) gives expert video advice on: How is a behavioral addiction similar to a substance behavioral addiction?; What is an "addictive personality"?; What can be done about an addictive personality? and more...

Some people would consider a person deeply involved in a behaviour but functioning well an addict. I wouldn't consider that person an addict. Just because somebody's become extraordinarily involved in something does not mean, by definition, that they're addicted, especially if all the rest of the domains of their life are being sustained and fulfilled. It would be like saying someone who's an artist and paints all the time is an addict to their art. I think that's a misuse of the term "addiction". Again, as long as the other domains of an individual's life are still maintained, and the behaviour doesn't cause the exclusion of other life and health promotive domains, even though the individual is engaging to it more often than perhaps preferred, it doesn't necessarily mean that it deserves the term "addiction".