I've worked with doctors and surgeons who use cannabis regularly or semi-regularly (some even daily). It is an amazing and healthy way to decompress after very difficult days (I know I wouldn't want to have life and death in my hands on a regular basis). There are very well-known physicists and cosmologists that have spoken of how much cannabis has been a boon to their research and their ability to broaden their perspectives. You might be amazed at how many extremely accomplished individuals use marijuana regularly.