(New York Times) – As products like weed gummies proliferate, more children and teens are suffering symptoms including seizures and life-threatening breathing problems.

As legalization and commercialization of cannabis have spread across the United States, making marijuana edibles more readily available, the number of cannabis-related incidents reported to poison control centers has sharply increased: from about 930 cases in 2009 to more than 22,000 last year, data from America’s Poison Centers shows. Of those, more than 13,000 caused documented negative effects and were classified by the organization as nonlethal poisonings.

These numbers are almost certainly an undercount, public health officials say, because hospitals are not required to report such cases. More than 75 percent of the poisonings last year involved children or teenagers. (Read More)