 In an effort to spread awareness about the dangers of teen marijuana use, the Berrien County Health Department is getting the word out there. They say those aged 12 through 20 risk impaired brain development by smoking pot. They also say many are vaping the substance by manipulating the cartridge inside the electronic vape pens. Department surveys have found that more than one in seven Berrien County teens have used marijuana in the last 30 days, so the department is asking the community to spread the message about the potential harm as well.