The most difficult part of training is knowing when to back off. We all get excited about our goals and can get ahead of ourselves. Luckily, technology can step in and be the voice of reason we need from time to time. My corosglobal watch tracks my training load when building towards a marathon. It allows me to quantify my progress and helps me understand if my training is enough, or possibly too much. I haven't raced since NYC Marathon, so the last several months I've focused on building fitness and slowly increasing intensity. My COROS data shows a steady increase in Base Fitness, and you can see the days where I had some really heavy workouts. Now we're at the homestretch of Boston Marathon prep and it's about maintaining fitness until race day and getting ready to run fast! I highly recommend getting your wrist into one of these! Use code EMMA when you purchase yours and get a free accessory ⌚️ #TrainWithCOROS #exploreperfection #marathontraining #marathonrunning #bostonmarat...