Hayden Panettiere is taking sometime for herself. The 26-year-old actress has checked into a treatment center as she continues to battle postpartum depression following the birth of her daughter Kaya, whom she welcomed with fiance Wladimir Klitschko in December 2014. "Hayden Panettiere is voluntarily seeking professional help at a treatment center as she is currently battling postpartum depression," her rep tells E! News. Last month, Hayden Panettiere appeared on "Live! With Kelly and Michael," where she opened up about her struggle with postpartum depression. "It's something a lot of women experience. When you are told about postpartum depression you think it's 'I feel negative feelings towards my child; I want to injure or hurt my child.' I've never, ever had those feelings. Some women do," said Hayden Panettiere, who also revealed she hopes to have four children.