Legalized Weed is Landing More Seniors in the E.R. NYT: Science By: Matt Richtel 20 May 2024 at 11:20 In Canada, cannabis poisonings rose sharply among people 65 and older after the country legalized the drug, a new study found. ยฉ Chris Carlson/Associated PressEdible marijuana samples at a cannabis testing laboratory in Santa Ana, Calif.