Elizabeth Vargas took her battle with alcoholism public in 2013, and she's continuing to speak out about overcoming the disease in an effort to help others.
In her upcoming book Between Breaths: A Memoir of Panic and Addiction, the 20/20 anchor candidly addresses how she used to rely on drinking to calm her nerves when she was anxious. But as Vargas tells Diane Sawyer in a special edition of 20/20 airing this Friday, recovery is something she isn't about to take for granted now.
"On one occasion, I had what I know to be a lethal level of alcohol in my blood system," she recalls. "And even that didn't scare me into stopping. Can you believe it? Even that."
She also looks back on the impact her illness had on her two young sons. "I would die for my children, but I couldn't stop drinking for my children," she says. "I don't know if I will ever forgive myself for hurting them with my drinking, ever."