Actress Charlize Theron says she reached "rock bottom" in her early 30s and wasn't aware that she required therapy.

Later the 38-year-old found the regular sessions useful, reports femalefirst.co.uk.

"I didn't know that I needed therapy. I was walking through life just kind of thinking everything was fine - you go and you work and there's this catharsis that happens when you are an actor, and that's healthy, right?

"(In my early 30s, I was) kind of at rock bottom. I called a friend and said, 'Will you give me the number of your therapist?' And I started seeing an incredible woman who is always just a phone call away," she said.