I don't know if it is bad overall or not. But I know that if I've gone a month or more without smoking then do, I am surprised at how much calmer and peaceful I feel for days after. It's strange but I have the same routine a lot of days so I know how I felt days before in situations and I would bet that I can handle them better emotionally if I smoked recently than if I had not. I'm not talking about being stoned at the time, I'm talking about a residual positive effect psychologically. It's no fluke.