What’s better than seeing someone reach a goal they have spent years trying to accomplish? That’s exactly what Lou Serafini did at the TCS NYC Marathon. In his seventh marathon he battled cramps and a grueling 23rd mile to a stellar This episode is sponsored by InsideTracker. In an era where there are more diet plans than people getting personalized nutrition can make all the difference. InsideTracker analyzes 43 different biomarkers so you can optimize your health and performance. Use code RAMBLINGRUNNER to save 15% at www.insidetracker.com.