64 karma · joined November 21, 2012
Even if it were true, your statement still doesn't contradict GP's assertion.
Working in psychiatry research myself, I definitely don't trust a single study out there that claims to have found a simple relationship between such incredibly complex things as moods, bioactive substances, person's environment, genetics, etc (same goes for nutritional science, environmental science, economics, and so on).
To me much more compelling evidence are anecdotal cases from my personal life. I know people who have smoked all the time since their teenage years and who lead happy lives, but I have also seen how people can get really messed up from pot and how it goes away when they stop (although occasional episodes and mood swings can persist long after stopping). Other huge factors no one seems to talk much about are interactions between everyday stress and smoking, between coffee consumption and smoking, alcohol and smoking. The list goes on forever.
Well, I really can't understand how people can be addicted to gambling. Doesn't mean it's not a problem for some.