还是主贴里链接里的信息：
Around 2014, the Pueblo, Colorado-based doctor noticed an explosion of young cannabis users presenting with psychotic episodes.
Today, she sees at least one case daily—and the youngest sufferer she has encountered was just 7.
“I really think the issues that we’re seeing now are being driven by high potency, the encouragement to use, and the public’s perception of lack of harm,” Dr. Randall said.
我搜了一下，科罗拉多州正是从2014年开始大麻合法化的：
In 2012, Colorado voted to legalize recreational marijuana beginning in 2014, making it the first state alongside Washington to permit recreational use. Several other states have recently legalized the use of medical or recreational marijuana, with other states considering similar measures (Figure 2).
