Researchers found that multiple measures of lung function actually improved slightly as young people reported using more marijuana -- at least up to a couple thousand lifetime joints.
The new data come from a long-term study of more than 5,000 young adults in Oakland, Chicago, Minneapolis and Birmingham. From 1985 until 2006, researchers regularly asked participants about their past and current use of cigarettes and marijuana. They also tested how much air their lungs could hold and the maximum rate of air flow out of their lungs.
Health Glance
GlaxoSmithKline Argentina Laboratories company was fined 400,000 pesos by Judge Marcelo Aguinsky following a report issued by the National Administration of Medicine, Food and Technology (ANMAT in Spanish) for the killing of 14 babies during illegal lab vaccine trials conducted between 2007 and 2008.
Johnson & Johnson will pay more than $1 billion to the U.S. and most states to resolve a civil investigation into marketing of the antipsychotic Risperdal, according to people familiar with the matter.





























