Study: Smoking Pot Lowers IQ

    LOS ANGELES, CA - JULY 25:  A budtender rolls a marijuana cigarette for a patient at Perennial Holistic Wellness Center medical marijuana dispensary, which opened in 2006, on July 25, 2012 in Los Angeles, California. The Los Angeles City Council has unanimously voted to ban storefront medical marijuana dispensaries and to order them to close or face legal action. The council also voted to instruct staff to draw up a separate ordinance for consideration in about three months that might allow dispensaries that existed before a 2007 moratorium on new dispensaries to continue to operate. It is estimated that Los Angeles has about one thousand such facilities. The ban does not prevent patients or cooperatives of two or three people to grow their own in small amounts. Californians voted to legalize medical cannabis use in 1996, clashing with federal drug laws. The state Supreme Court is expected to consider ruling on whether cities can regulate and ban dispensaries.    (Photo by David McNew/Getty Images)

    David McNew / Getty Images

    That’s harsh. Persistent pot smoking can lead to a lower IQ, attention problems, and issues retaining memories, according to a new study from Duke University and King’s College London. Researchers surveyed more than 1,000 people from Dunedin, New Zealand and found an eight point drop in IQ for those who lit up frequently compared to those who steered clear of smoking. Those who started smoking pot as teenagers but stopped later in life weren’t able to recover all of their mental faculties, the researchers also found.

    Read it at The Telegraph