New take on runner’s high: Study explores how marijuana affects workouts

As an ultramarathoner who covers as many as 100 miles a week during peak training, Heather Mashhoodi has to get creative to make the miles go by faster. She listens to podcasts and audio books and takes in the natural beauty. And when her enthusiasm begins to wane mid-run, she pops half of a marijuana-infused gummy into her mouth.