Youths can take different routes to drug addiction

Drug policies in the United States have long been influenced by the idea of a "gateway progression" in drug use, where the use of one substance eventually leads to "harder" drugs. Marijuana is often called a "gateway drug" because many young people who use it later move on to substances such as heroin and cocaine, and the gateway progression has been considered a strong predictor for drug dependency. A new study from the University of Pittsburgh, however, suggests that teens who follow a reverse sequence -- using harder drugs without having first tried "softer" ones, such as cigarettes and alcohol -- are just as likely to develop a drug dependency. In a study of 214 boys, researchers monitored participants' use of tobacco, alcohol, and marijuana over a 10-year period, until they reached the age of 22.

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Doherty treated for drug addiction

BRITISH rock star Pete Doherty, the on-off boyfriend of supermodel Kate Moss, is reportedly being treated for drug addiction at a clinic in Portugal. The 27-year-old Babyshambles frontman will have the drug naltrexone, which reduces the craving for heroin, implanted in his abdomen at the clinic at Oeiras, an oceanside suburb of Lisbon, Portuguese newspaper 24Horas reports, citing clinic sources. Doherty arrived in Portugal on Monday and is being accompanied by a British doctor, the paper said. The troubled singer has repeatedly sought treatment for drug addiction before in Portugal as well as at clinics in England, France and Thailand. He was arrested on suspicion of possessing crack cocaine earlier this month after he was spotted driving his Jaguar erratically near his home in East London.

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