[Persevero]

I thought addiction made you thin.

I have seen the occasional photo of a fat meth head, too, and I wondered, how did that happen?

[erman]

I have seen the occasional photo of a fat meth head, too, and I wondered, how did that happen? <\i>

Just means they haven't been addicted long enough or have a mixed drug addiction like opiates or benzodiazepams on top of the stimulants.