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ABOUT THE AUTHOR Amy Sherman Amy Sherman is editor-in-chief of The Alcohol Professor

Beyond light and mild: cigarette brand descriptors and perceptions of risk in the International Tobacco Control (ITC) Four Country Survey: Cigarette brands and perceptions of risk

The researchers found a small, but statistically significant effect: Cannabis smokers had on average a six-point lower IQ

In 2003, Moore's contributions to charitable causes earned him a knighthood, by Queen Elizabeth

Compared to unfiltered cigarette smoke, cannabis smoke does seem to contain more benzopyrene and benzanthracene, which are polycyclic aromatic hydrocarbon procarcinogens
