Cannabis is hell of a drug. I don’t say that to demonize cannabis, but rather to call attention to its remarkable complexity, both in terms of its composition and place in our current culture. In the past year, I have written four expert opinion essays in the popular media, being careful to present the scientific consensus and most up-to-date research concerning cannabis addiction and its diagnostic picture, the complex relationship between cannabis and mental health, and the potential therapeutic role of cannabis in the opioid crisis.