Long distance runners have known about pot’s beneficial effects for years. A little cannabis before a cardio session will help you stay in the zone and not fixate on the painful experience that is running, which results in performance gains. “Some people have a hard time focusing on their workout… smoking can help in that regard. It’s not like taking pre-workout is any better for your health,” says New York-based trainer Alex Baril. However, if you’re interested in testing this one out, it’s probably wiser to have an edible or vape instead of lighting up.