Building muscle is about learning how to train your body in the most optimal way possible.  In the gym, these are by far the biggest muscle building misconceptions I have encountered and continue to encounter not only from newcomers but also from intermediate lifters as well. 1. Longer Workouts Produce More Results False.  And here’s why: A solid workout should last between 45 minutes and an hour.  If a normal workout for you greatly exceeds this time frame, you need to step back and take a look at how you’re spending your time...