By Erika Thompson
With the recent completion of the Amsterdam half-marathon, I hang up my finisher’s medal among the rest with pride. It feels like an accomplishment and in that moment, I am invincible and immediately sign up for my next challenge: the Barcelona Half-Marathon in February 2014. But then Monday comes and I wake up with stiffness, aching and soreness as I waddle around the city and grip the railing with white knuckles descending down the staircase. Tuesday comes and I opt for a glorious nap after a long day instead of the obligatory workout. Wednesday comes and my 5km run feels like it will never end… and I think on days like these, why do I intentionally put myself through grueling events like this over and over again? The answer: runner’s high.