Hayden Panettiere has revealed she turned to alcohol and opioids in the past before doing "a lot of work" on herself in recent years.
The 33-year-old actress - who is best known for her roles in shows like Heroes and Nashville - experienced substance abuse early in her career.
She also suffered from postnatal depression after the birth of her daughter Kaya, now eight, with her ex Wladimir Klitschko, 47.
