As a young girl, I was taught to believe that women in my family weren't built to be runners. Why? Because we all have large breasts is what I was told…Even just merely typing that “justification” now feels ridiculous. These days, I run 5 miles a day and have been a runner for the last 8 years. As a woman with a size E chest, I feel I have some authority to say, that no, big boobs don’t mean you can’t be a runner. However, I believed it. I never even ran a mile until I was in