This post is the sixth in BlogHer’s Inspiration to Fitness series. To start from week one, click here. Our first 4 workouts can be found here, here, here, and here. You’ve been working out for weeks, maybe months. Your body is getting stronger, and you are making progress. Then, all of a sudden you hit a plateau. Even though you might be working out every day, your body is no longer changing. What happened? Your body…