Panettiere welcomed her first child with fiancé Wladimir Klitschko, a daughter named Kaya, in December 2014. In September 2015, the actor revealed that she had been suffering from postnatal depression – know as postpartum depression, or PPD, in the US – and voluntarily checked into a treatment centre the following month.

Since then, her character on Nashville, Juliette Barnes, has been dealing with PPD in her own storyline and the 27-year-old found it reassuring.

“I think it helped me identify what was going on and to let women know that it’s OK to have a moment of weakness,” she said. “It doesn’t make you a bad person, doesn’t make you a bad mother. It makes you a very strong, resilient woman.

“You’ve just got to let it make you stronger.”

Hayden Panettiere on getting through postnatal depression: “I’m all the stronger for it”