Muscle turns to fat when you stop lifting weights, right? You've heard that conversion formula before, now find out why it doesn't add up physiologically. We sought to debunk this and other weight training myths with the help of certified strength and conditioning specialist Everett Aaberg, director of education and personal training for International Athletic Club Management in Dallas and author of Muscle Mechanics. What we discovered will insure that you don't end up feeling like a dumbbell. Myth: One week in the gym and I'll look like "Stone Cold" Steve Austin. Fact: Hyper…