Who is Polly from Reviving Ophelia and what is their importance?

Polly is Dr. Pipher's younger cousin. She describes Polly as "energy in motion". Polly is active, confident, and androgynous as a child, but she struggles with adolescence. Polly becomes less of a tomboy and more submissive in order to be accepted and again welcomed by her peers. Dr. Pipher lists Polly's case as an example of the type of androgynous existence that most young girls experience before their teen years change them forever.