gnu, levels of THC in modern forms of cannabis are up to ten times greater than those in earlier types (eg in the seventies). A study last year in New Zealand showed a worrying reduction of up to 8 points in the IQ levels of people under 18 using the drug for a year. They also found even more worrying defects of cognitive function. Permanent ones. Drug use isn't cool, fun or harmless, particularly in the developing brain of the adolescent. I've seen the most appalling wrecking of lives due to all sorts of drug abuse among the serving prisoners I undertook to visit. (I include misuse of alcohol in that too.) I'm afraid threads like this that treat drug use in a light-hearted way make me shudder.