. >> narrator: joanne pomodoro is a clinical social worker at mass general hospital and a first timeup until probably three to six months after an event and many times if people don't work on what the issue is, then they may reexperience it, so not being at the course, not training again on the course, and then all of that might become a flooding experience, with too many emotions. >> reporter: putting one foot in front of the other, duvall has spent years learning how to move forward in the face of devastating loss. this year, she may help show others the way. >> i think that you just have to stick with your routine and breathe in and breathe out every day, and the anniversary will come and be very, very emotional, but you move through it and feel a sense of relief as you get past that day. >> sally duval says she will be running the boston marathon alongside her husband who has run then marathon for the last ten years and later this year, she plans to run a 100-mile race. plenty of inspiration right there. >> no doubt. alexandra field thank you so much and our thoughts are with all