That said, the two friends of mine that were the heaviest smokers, saw dramatic improvements in their lives in the few years immediately following giving up smoking pot. Both in terms of health and professional success. They were recreational smokers, rather than smoking for pain purposes or similar, it should be noted. One of them has become a very successful business person, the pot smoking had considerably dulled their ambition. They used to do the minimum to further their life. Afterward, their potential was unleashed, it was night and day (and a dramatic benefit to the well-being of their family).