The Marijuana Dispatch

Drop in IQ linked to heavy teenage cannabis use : Nature News & Comment ✭: “Becoming a heavy cannabis smoker as a teenager results in cognitive decline not seen if the illicit drug use starts when adult.” This new research comes from Duke University in Durham, North Carolina, Clinical psychologist Madeline Meier used data from 1,037 New Zealanders over 40 years worth of data, and were able to find people and compare their IQ before and after cannabis use, ruling out other defects that might cause such a decline.
Drop in IQ linked to heavy teenage cannabis use : Nature News & Comment.

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Drop in IQ linked to heavy teenage cannabis use : Nature News & Comment ✭