"This is unashamedly another plug for 'Junk Medicine: Doctors, Lies and the Addiction Bureaucracy' by iconoclastic doc Theodore Dalrymple, which I first reviewed back in January, and which our medi-blogger Dr Fred Hanson mentioned in his piece a few days ago. Almost everything you know about heroin addiction is wrong, Dalrymple says. Heroin is not highly addictive; withdrawal from it is not medically serious; addicts do not become criminals to feed their habit; addicts do not need any medical assistance to stop taking heroin; and heroin addiction is more about mentality than biology. It's great stuff."