hah Nice vid, but obviously they "controlled" the output. There were several times they had pictures with a smiling face vs a drugged out face with no smile.
Drugs do have an effect without question. That video is tainted though as most attempting to portray her in a dirt light would do so without her smiling.
In the end, addiction doesn't produce smiles though. Anyhow. Taking it at face value is BS. Though it leads there if the victim can't deviate from the path.
Whoever made that video did an awesome job though.