On the original topic, while I've discussed this many times, I think people would believe what they want. At least I'm glad Pat has decided to stop smoking weed. This test has been only done on rats, and I'll not trust that the same can be true about humans.

On a side note, once a brain cell is dead, no other cell will take its place. Until very recently and just in some lab. researches, there were no hopes of producing new brain cells.

Smoking of any kind can do far worse than good for you, but then it is your choice and your life.

And btw, I've seen those who think they are smarter when they smoke pot. It usually takes them 3 hours to solve a simple math problem you could do in matter of 2 minutes. They don't seem to be aware of their slow pace and mistakes however. Dorm days, they are long gone.