2012 study: Netherlands study of 2,000 teens show pot/psychosis link 2010 study: Netherlands study shows marijuana may stunt fetal growth 2009 study: American Chemical Society reports, marijuana damages DNA and may cause cancer 2009 study: Pot during pregnancy predicts long-lasting neurobehavioural problems for the child 2008 study: Marijuana smoker faces rapid lung destruction, 20 years ahead of tobacco smokers 2007 study: New Zealand study of impact on lungs from one joint equaling three to five cigarettes 2007 study: Canadian study shows pot smoke contains higher levels of various toxins than tobacco smoke 2007 study: Harvard finds that marijuana component opens the door for cancer virus for Kaposi's Sarcoma 2006 study: The journal Neurology reports that marijuana causes learning and memory impairments 2005 study: New Zealand study reports habitual marijuana use strongly associated with car crash injury 2005 study: French National Institute for Transport and Safety Research shows pot doubling fatal crashes 2004 study: Hungarian Neuropsychopharmacologia journal reports schizoid psychosis from smoking pot 1989 study: In the U.S., from back when it was weaker, pot associated with impaired fetal growth Drugs.com: nursing mom smoking pot passes THC, etc. to her child;