Tag Archives: IQ decline

Use of Pot in Teen Years Linked to IQ Decline by Age 30

As recent studies have shown that marijuana use is extremely popular with adolescents, more so than alcohol and tobacco, further research, just released in the Proceedings of the National Academy of Sciences, finds that habitually smoking marijuana before age 18 showed an eight-point drop in IQ between the ages of 13 and 38, a considerable […]

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