It's an unconventional eating disorder treatment which its Swedish creators believe is more effective than traditional approaches.
For years Hayley struggled with an eating disorder that developed at 14.
By year 10, she'd dropped out of school.
Her mother, Margie, told SBS through dehydration or starvation, her daughter was on the brink of heart failure.
When conventional treatments failed to work, after three years in and out of psychiatric hospital, Hayley, travelled to Stockholm for treatment of a different kind.
Watch Sarah Abo's report to find out more.