從2014年開始，一位科羅拉多醫生發現急診室年輕精神病發作患者爆炸式增多，最小患者7歲。

還是主貼裏鏈接裏的信息：

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，科羅拉多州正是從2014年開始大麻合法化的：

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).

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