A study from the USC Head and Neck Center, part of the USC Caruso Department of Otolaryngology – Head and Neck Surgery of Keck Medicine of USC, suggests that cannabis, the most commonly used illicit substance worldwide, is associated with an increased occurrence of head and neck cancer.

The large, multi-center study, published in JAMA Otolaryngology – Head & Neck Surgery, revealed that adults with cannabis use disorder are 3.5 to 5 times more likely to develop head and neck cancer than those who do not use the substance.

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