![He's one of the animals in my
department's nicotine addiction study.
He's one of the animals in my
department's nicotine addiction study.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
He's one of the animals in my
department's nicotine ADDICTION study.
The Big Bang Theory Season 4, Episode 21
![Oh, yes, online gaming addiction.
Oh, yes, online gaming addiction.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Oh, yes, online gaming ADDICTION.
The Big Bang Theory Season 2, Episode 3
![I'm right in the middle
of my addiction study.
I'm right in the middle
of my addiction study.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I'm right in the middle
of my ADDICTION study.
The Big Bang Theory Season 5, Episode 15
![...with a slightly out-of-scale head
and a mild Dr. Pepper addiction.
...with a slightly out-of-scale head
and a mild Dr. Pepper addiction.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...with a slightly out-of-scale head
and a mild Dr. Pepper ADDICTION.
The Big Bang Theory Season 3, Episode 17
![...gambling addiction
and sexually-transmitted diseases.
...gambling addiction
and sexually-transmitted diseases.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...gambling ADDICTION
and sexually-transmitted diseases.
The Big Bang Theory Season 2, Episode 21