Cannabis and exercise may not seem like the most likely duo, but emerging research suggests it might be the secret ingredient for making workouts more fun. The elusive “runner’s high” is probably more attainable if you sprinkle a little weed on your workout. At least, that’s what former collegiate and professional runner Chris Barnicle would do. Barnicle had to hide or limit his cannabis runs when he was a pro, like when he qualified for…