Why are women so competitive?

Competition between women can be fierce and there's no doubt that when a woman wants something, she'll do whatever she can to get it. Yahoo! Shine  teamed up with Fitness Magazine for an exclusive survey (now appearing in Fitness' July/August issue on newsstands now) to find out what factors drive women to be competitive. On today's episode, Fitness Magazine's Executive Editor Pam O'Brien dishes on the intriguing, and sometimes eye-popping results. Want to know what percentage of women would go up against their best friend for a job if given the chance? Watch and find out.