Actress Gemma Oaten has dedicated much of her adult life to warning others about the dangers of anorexia.
The former Emmerdale star, 35, suffered from the life-threatening eating disorder as a child, and has now opened up about how the condition caused her to have a heart attack.
In a TEDx Talk conference filmed and shared recently, the Holby star described the mental illness as a "monster" and admitted she'd been in the grip of it for 13 years.
She revealed: "At 12 years old, a medical assessment pulled me from my home and into a psychiatric unit.
"I was so weak they had to push me in a wheelchair and I was told if I didn't eat or drink within 24 hours I'd be dead."
Gemma, who is patron of the charity SEED (Support & Empathy for Eating Disorders), continued: "I've had some amazing experiences. But I've also had some really frightening ones, like a heart attack in my late teens.
"That heart attack was my body failing in the grips of an eating disorder. I was in the grips of that monster for 13 years."
That heart attack was my body failing in the grips of an eating disorder.
She went on to say: "Eating disorders are deadly and no-one has to die from them, but people still do.
"Rapid weight loss or weight gain that has no medical cause is an external expression of something that is already there.
"Waiting for the weight to change isn't going to stop what is already there."
In the talk, in which she also touches upon bullying and the necessity for early intervention, she added: "People often think and hear that an eating disorder is a way of controlling something and that's what I believed, but ultimately you lose control of everything."
Gemma has previously credited her family - especially her father - for helping her through it.
After sharing the TedTalk, Gemma thanked her supporters on Instagram.
Writing to her 17,200 followers, she said she was "completely blown away by the response".
She added: "Some of the messages I've had after people have watched has warmed my heart and made the leap of faith to be honest, authentic and open, all the more worth it."
Gemma, who admits she contemplated suicide, weighed just four and a half stone when her eating disorder was at its worst, leaving her parents "petrified".
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