Interesting podcast on weed & sleep seems to point out a lot of the benefits of cannabis go away and a lot of the problems mainly arise with frequent use. Weed shutting down your REM sleep but also causes sleep disturbance (waking up early) contributes to a lot of the moodiness, addictive "cycling" (feeling bad, smoking, getting sober, feeling bad.) Something to consider, poison is in the dose/frequency.
1) Because the people who classify these things are just being mechanical about it.
2) It also depends on your genetics. For some people weed is a psychedelic and for others it is not.
3) What I don't endorse about weed is the stoner sub-culture and the chronic use of weed. There is no problem with using weed occassionally for a trip. But that's not what these stoners do.
