Editor’s note: The podcast Chasing Life With Dr. Sanjay Gupta explores the medical science behind some of life’s mysteries big and small. You can listen to episodes here .

(CNN) — Cannabis, or marijuana, has come a long way on the road back to legitimacy in the United States, and it soon may pass an important milestone: rescheduling. That’s the technical term for reclassifying it as a less dangerous drug, which would loosen some restrictions around it at the federal level. Javascript is required for you to be able to read premium content.

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