The Boston Marathon is one of the world’s oldest and best known annual races. Just this year, the event saw a turnout of about 30,000 participants. But one special runner was our very own Dr. Mary Courtin! If Dr. Courtin’s name seems familiar, it may be because you watched our first “We Are Dentistry” video that featured Dr. Courtin and her family. In this first installment of our project, Dr. Courtin shares the story behind her passion of running.