Marijuana

It certainly sounds like an article written by someone on the hunt for grant money.

Just skimmed this. Bluey is an established hypocrite, so that isn't news.

So I picked up guitar again about 18 months ago and all I have to say is that a little puffin makes practice time amazing. No puff, not so much. What could be wrong with that?

It's pretty well documented

Although there are a number of important implications of the findings presented here, they should be interpreted within the context of several limitations. Although the results of this study are consistent with the notion that chronic MJ use modifies brain functioning associated with monetary decision-making, the design of the present study does not allow for a causal conclusion about the link between MJ use and brain function or decision-making.

Despite these limitations, the results presented here provide further evidence that MJ may alter brain functioning. The findings from this study extend previous human neuroimaging findings that have focused more on purely cognitive processes by examining brain activation on a monetary decision-making task. We hope these findings spur further research to examine the effects of chronic MJ use on motivational processes and decision-making. Indeed, this line of research will have a critical role in forming scientifically based national drug policies.