I’ve run two half-marathons, and now I’m training for my first full marathon. I log a long run—anywhere from 10 to 20 miles—every Sunday. But I run out of steam almost every time, even though I drink water and Gatorade while I run. Should I eat during the run too? —Jenny Dear Jenny, First of all, congratulations on making the jump to the full marathon! On the day you finish, you will be a member of a courageous and distinct club!