Myth: To train for a run, you just run. Fact: Many will say, to train for a marathon, half marathon, 5k or a sprint, you just do it until it gets easier. There is some truth to this but it is extremely oversimplified and not applicable to most. For example, everyone starts at a different level. Some can run 4 miles but not quickly, some can run quickly but only for a short distance, some have never run in their lives. For this article, I will focus on the most beginner of trainers.