Think marijuana users are lazy? Think again. Colorado pro ultramarathoner Avery Collins uses cannabis during many of his 100- to 200-mile training runs. “If you can find the right level, [marijuana] takes the stress out of running,” the 22-year-old told the Wall Street Journal last year. “And it’s a post-race, post-run remedy.” While he doesn’t partake during official events — ultramarathons follow WADA guidelines — marijuana is still a part of every race he runs. Sponsorship logos from cannabis companies such as Mary's Medicinals and Roll-Uh-Bowl grace his jersey.