September 9, 2021 Young adult cannabis consumers nearly twice as likely to suffer from a heart attack, research shows A marijuana consumer marches in Mexico City to the Estela de Luz to demand respect for the rights of cannabis users and the liberation of free spaces for responsible consumption after the recent declaration of the unconstitutionality of the prohibition of the recreational use of marijuana in Mexico. (Photo by Gerardo Vieyra/NurPhoto) Young adult cannabis consumers nearly twice as likely to suffer from a heart attack, research shows