When I hear "toxins", I think of a developer on a project I helped manage. He was having health problems so he had to take a 1-1.5 month sabbatical to India to be cleansed of toxins. If I remember correctly the end result was that he quit.

While I do believe there that the body cleanses itself from toxins, and I can't say for certain whether the developer that left us got his toxins cleansed or not, this article and study smells of B.S.

The second tip off is the quoted doctor's name: Dr. Nedergaard

Scientists with Dutch/Scandinavian names always seem to produce the most crap science on average in my experience. I have no idea why, but I've noticed it. Especially when it comes to the "positive affects" of pot. I know that is an over-generalization, but someone should do a study on that to see if it's true. Preferably one without as many A's in his/her last name.