Pot linked to psychosis in teens, or maybe it's vice versa

Do teens who smoke pot have a greater risk of developing psychosis? Or are psychotic symptoms the reason they toke up? In a recent "chicken or the egg"-style study from the Netherlands, researchers explored how THC—the active property in marijuana—changed teenagers' brains. After surveying 2,120 teens, researchers learned that 44 percent reported smoking marijuana. They also found there was a  so-called "bidirectional link" between psychosis and pot use. "Using pot at 16 was linked to psychotic symptoms three years later," the research said. "And psychotic symptoms at age 16 were linked to pot use at age 19." The authors did note that smoking pot was a risk factor for these disorders, but not the cause. [Source]

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