Pubdate: Tue, 22 Apr 2014 Source: Columbus Dispatch (OH) Copyright: 2014 The Columbus Dispatch Contact: http://www.dispatch.com/ Details: http://www.mapinc.org/media/93 Note: - Bloomberg View LEGALIZERS IGNORE POT'S DANGERS Marijuana has now been legalized or decriminalized in 17 states and the District of Columbia, with Maryland joining the list just last week. What's unhealthy about this trend is that it coincides with a declining awareness of marijuana's dangers - especially among young people. Fewer than 40 percent of high-school seniors think marijuana use poses a great risk, down from 55 percent in 2003. Cigarettes are dangerous, more and more adolescents have come to realize, but they don't believe marijuana is. (In fact, they're both unhealthy.) That they could be so wrong about a drug that more than a third have used makes it clear: In their drive to roll back laws against marijuana, and for the revenue that undoing prohibition would raise, states are inadvertently stoking a serious public-health problem. Marijuana poses the greatest threat to the still-developing brains of teenagers. Steady use can bring lasting impairments in memory, intellectual functioning and emotion control. Marijuana use has been linked to depression, anxiety, even psychosis. Smoking pot once a week or more appears to actually change the size and shape of certain brain regions in young people. Dependence is a special problem, not limited to adolescents but more prevalent among them: One in 6 teenagers become addicted to marijuana, according to the National Institute on Drug Abuse (the comparable figure for adults is 1 in 11). With dependence comes every sort of social trouble: isolation, failure at school and work, often profound unhappiness. There are other effects, equally disturbing. Smoking pot is bad for the lungs. It slows reaction time (fatal car accidents involving drivers testing positive for marijuana tripled in the U.S. from 1999 to 2010). Pot use during pregnancy can harm the fetal brain, and there remain unanswered questions about how marijuana affects adult and geriatric brains. When marijuana use was illegal, fears about these effects were circumscribed. Legalization both eliminates the possibility of penalty, encouraging many more people to try marijuana, and lowers the price, making it easier for everyday users to keep their habit going. Both Colorado and Washington, the two states that have legalized marijuana for adults, have rules to keep minors away from it. Sales to them are punishable by steep fines and jail terms. Nevertheless, more teenagers in these states are expected to use marijuana than did before it was legalized. Such restrictions are essential, but they do nothing to educate kids or their parents about the risks marijuana poses to still-growing brains, or to inform adult users about the dangers of overuse. The states should direct tax revenue from marijuana sales toward public-education campaigns. As with all sin taxes, states will have to balance the competing goals of raising revenue and affecting behavior. It is not hypocritical to use money from taxing a product to discourage its use; states do it now with cigarettes and alcohol, for example. As states make it easier for the public to get marijuana, they are obligated to protect the public from its harms. - --- MAP posted-by: Jo-D