If you’re over 50, chances are you’ve heard a lot of fitness “wisdom” over the years. Some of it is helpful. Some of it belongs in the same category as miracle weight-loss belts, vibrating ab machines, and “lose 20 pounds while you sleep” promises. The truth? Believing the wrong fitness myths can slow your progress, waste your money, and even lead to injury. Let’s clear the air. Myth #1: “I’m too old to get in shape.” This may be the most damaging myth of all. Yes, your body