Hayden Panettiere's new book, "This Is Me," reflects on her relationship with Milo Ventimiglia, her mother, postpartum depression, abuse and more.

Hayden Panettiere has been acting since she was in diapers, and now she's telling the journey behind the scenes, including addiction and recovery.

Hayden Panettiere's new book, "This Is Me," reflects on her relationship with Milo Ventimiglia, her mother, postpartum depression, abuse and more.