EL PASO, Texas (KVIA) -- Sarah Zambrano is the epitome of strength and determination. She's a crossfit competitor, a runner, and a mother of two. What you can't see on the surface is how much she's dealing with on the inside. She has been diagnosed with severe rheumatoid arthritis, and lives with chronic, debilitating pain. Her mental strength is to be admired, as she pushes forward to live her best life - for herself, and her family.