Forget Protein Shakes. The Newest Workout Supplement? Marijuana.

Like many other fitness-minded young professionals, a 25-year-old Boston resident named Cameron adheres to a fairly typical pre-workout routine. There’s the 20 minutes of stretching, generally followed by some light cardio.

As marijuana legalization has pushed the drug further toward the mainstream — and a longstanding social stigma has begun to dissipate — more individuals are taking up before hitting the weight room, sports field, or mixed martial arts mat.

While the idea might seem inherently counterintuitive — weed, after all, is a substance more commonly paired with Doritos than deadlifts — there is a passionate contingent that swears by it.

“It’s a weird phenomenon, but it’s an increasingly common phenomenon,” says Peter Grinspoon, a primary care doctor at Massachusetts General Hospital and author of the book “Free Refills: A Doctor Confronts His Addiction.” “The fact that a lot of people are saying it helps them can’t be ignored.”

Research into marijuana’s benefits has been notoriously scant, due in large part to the drug’s federal classification as a Schedule 1 substance — meaning that, along with heroin, LSD, and ecstasy, it’s deemed to have “no currently accepted medical use and a high potential for abuse.” And the few studies that do exist offer relatively little insight into the drug’s effects during physical activity, beneficial or detrimental.

Read the full article at Boston Globe