Agonising article by Patrick Cockburn on his son’s schizophrenia.

I blame cannabis for what happened to Henry. He says he smoked a lot between the ages of 14 and 19, but I didn’t notice at the time.

I would have been concerned, of course, if I’d known back then, but until recently I had no idea about the explosive impact cannabis can have on some people.

I don’t think people realise 19 out of 20 people might take a small quantity of cannabis without ill effects, but for the 20th person who has a genetic predisposition to schizophrenia, the result is catastrophic.

I don’t believe those who advocate less stringent laws on the sale and consumption of cannabis realise the devastating effect it can have…