Annie Coyle was in the sixth grade when she found out a golf ball-sized lump in her throat was cancerous. But with the help of her doctors and family, Annie beat non-Hodgkin's lymphoma
. Today, she's a 16-year-old runner following in her marathon-runner father's footsteps to raise money for childhood cancer research. She says cancer changed her for the better, and she looks for ways to give back.