Given the link between inflamation due to infection and schizophrenia (here's a radio documentary on the subject, 'The Inflamed Mind', https://www.youtube.com/w

Given the link between inflamation due to infection and schizophrenia (here's a radio documentary on the subject, 'The Inflamed Mind', https://www.youtube.com/watch?v=YpjYmYPKZNE https://www.youtube.com/watch?v=YpjYmYPKZNE ) and the fact that joints and bongs are very often shared, any correlation could be entirely down to the increase in disease transmission vectors rather than the cannabis itself.