With the Olympics drawing near and summer athletics in full swing, we're excited to welcome back a guest blogger who keeps his finger on the pulse of peak performance, Joe DiStefano, better known as “Joe DI.” Not only is he the Director of Sport at Spartan Race, he's also a longtime friend and user of InsideTracker. Last we heard from him, he shared his personal “unplugged” approach to sleeping soundly through the night, and provided the methodology for how you can do it too. In this edition, ...