The only reason cannabis is causing depression is because you think to yourself, "man i just wasted a week of my time that i could/should be doing something more productive"

now if that is truly how you feel, thats a good thing, a good depressed feel will sometimes get me outta the house and out working or such (not many ppl can go to work whenever they want).

If you were some retired dude that doesnt have anything to but sit around and smoke and have a good time, i highly doubt you would get depressed. Cause you would be like, I could be out....... I could be doing...... I could be eating at a denny's!!!!

/fin