Well good for you. I know many, many others who have not fared as well, although many of them still insist that their habit is good for them. My wife who is a retired nurse and department head can spot a long-term pot smoker from a mile away. Living in Washington this describes a high percentage of our long term friends and associates. I am not going to try and name all the signs she is aware of, but as I said previously cognitive issues are number one and denying that marijuana has any negative effects on them is number two. LOL!
But to be honest, I don't care what it does or doesn't do, the idea that some asshole somewhere wants to stop me from doing it is repugnant.
Been a toker for the better part of 30 years. A year after I quit cigarettes, I had a lung xray. Doc said my lungs looked great, and he was glad I quit the cigs. As for so-called "cognitive" issues, I'd bet money these folks have used far more, harder drugs than MJ.
The truth is, pot is used by your mortgage brokers, bankers, lawyers, doctors, politicians and more. You only THINK you know what a typical toker looks like, based on outdated, ignorant stereotypes. If everyone you knew revealed themselves as the pot smokers they are, you'd feel really stupid for spouting off about things you know absolutely nothing about.