Here’s one of the most common excuses people use to not exercise and why it won’t fly anymore. — One of my favorite strength coaches and motivational speakers is Todd Durkin. He is the owner of Fitness Quest 10 (recognized as one of “America’s 10 Top Gyms” by Men’s Health), been a featured trainer on NBC’s Strong and has trained superstars such as Aaron Rogers, Drew Breese, LaDainian Tomlinson…