Entrepreneur and former collegiate gymnastics champion Jason Shen had a less-than-awesome experience running his first marathon. Find out what went wrong and how we can all learn from his rocky road to the finish line.
GUEST POST: When the freshman 15 turned into a college 40, Carla Birnberg was ready to make a change. The first step: finding her way to the gym. What came next was a complete makeover, inside and out. Read her story here.