ER Visits for Kids Rise Significantly After Pot Legalized in Colorado

The number of teenagers sent to emergency rooms more than quadrupled after marijuana was legalized in Colorado — mostly for mental health symptoms, researchers reported Thursday.
They found 639 teenagers who went to one hospital system in Colorado in 2015 had either cannabis in their urine or told a doctor they'd been using cannabis. That's up from 146 in 2005, before the use of marijuana was legalized in Colorado.