Best known for her role as Juliette Barnes in Nashville, Hayden welcomed her first child Kaya in December 2014.
The birth of daughter led to the 26-year-old suffering from depression, but she voluntary checked herself into a treatment facility in October 2015.
"I was always so terrified that people weren't going to accept me," she told Yahoo!.
"I finally just went, 'I'm tired of living afraid. I'm tired of living in fear of what people are going to think, so you know, I'm just going to put it all out there on the table and I'm not going to worry about the judgment.'"
Hayden revealed she struggled after her daughter's birth
Hayden opened up about her postnatal depression last year, letting women know that they are not alone.
"The more open I was, the more acceptance I got from people," she explained. "I got so much support and so much love. I was floored. I feel much more exposed, yes, but in a great way."
"If you think for one second that a mother wants to feel that way towards her child, you're outta your mind," Hayden added.
If you want to find out more about postnatal depression, click HERE.