A 2001 study of high school students conducted by Harvard University found that one in five teenage girls had been physically or sexually abused by a dating partner.
Research shows that teen girls are not as likely to be as abusive as teen boys.
Jennings received national attention in 2007 when an interview with Barbara Walters aired on 20/20, which led to other high-profile interviews and appearances.
Christine Connelly, a member of the board of directors for the Boston Alliance of Gay, Lesbian, Bisexual and Transgender Youth, stated, "She was the first young person who picked up the national spotlight, went on TV and was able to articulate her perspective and point of view with such innocence." Jennings is an honorary co-founder of the Trans Kids Purple Rainbow Foundation, which she and her parents founded in 2007 to assist transgender youth.
Her parents first decided to seek advice from a pediatrician when she was two years old, after she asked: 'Mommy, when's the good fairy going to come with her magic wand and change, you know, my genitalia?