The condition, also known as "hair-pulling disorder," involves recurrent, irresistible urges to pull out hair.

Munn also revealed that her trichotillomania is partly due to her Obsessive-Compulsive Disorder (OCD) diagnosis. “OCD comes from a place of needing to feel safe,” she said. “Having had a tumultuous upbringing and moving around a lot, some of that anxiety came back when I got on TV.”

Munn spoke about her experience with trichotillomania – a mental health condition that “involves frequent, repeated and irresistible urges to pull out hair from your scalp, eyebrows or other areas of your body,” according to the Mayo Clinic – while appearing on Monday’s episode of the “Armchair Expert” podcast.