I've heard that with THC levels between 13% and 30% that teens and adults that have a predisposition to numerous mental disorders that are showing up at an accelerated rate. It's hallucinogenic at those percentages of THC. I tried some "Dank" (by "Tried" I mean I just took one hit!"). That shit was strong, I don't like it that intense, I like mellow, so no more for me!