We Can't Get Enough of These Fit and Fabulous Senior Citizens

This year, awe-inspiring 91-year-old Harriette Thompson completed her 15th marathon in San Diego. This woman became the second oldest US women's marathon finisher, and she hit the pavement just weeks after undergoing radiation treatment, battling squamous cell carcinoma on her legs. The next time you don't think you have what it takes to take on those 26.2 miles, think of Harriette's story.