By Amy Morin, a licensed clinical social worker and an internationally recognized expert on mental strength
Without mental strength, we aren't likely to reach our physical fitness goals -- or any other goals for that matter. Building mental strength is the key to reaching our full potential in life.
There are a lot of misconceptions about what mental strength really is and why it's important. Here are the five biggest myths about mental strength:
Myth #1 -- The Idea That You Can Build Mental…