Sitting for long hours at a desk or plugging away at a computer can leave your body feeling tight, and if it’s a stressful work day, particularly wound up. Our Be Well, Boston host Lara Salahi caught up with Erin Conley, a New York City-based yoga instructor who conducts summer workshops on Nantucket each year. The pair rolled out their mats at North End Yoga, where Conley shared a few poses and stretches that can help you unwind and relax after work.Chelsea Rice is a health producer for Boston.com. She can be reached at email@example.com. Follow her on Twitter @ChelseaRice.