Ashley Morgan is in hour three of her daily four-hour workout. She runs on a treadmill in her storage unit, which is locked. She is ashamed to be seen.
The 22-year-old from Abilene, Texas, is so afraid of getting fat, every bite is a battle. Morgan has been bulimic for many years, so what goes down almost automatically comes back up.
"I couldn't keep my snack down, and I had to run to the nearest trash can," she said in an interview with "Nightline" anchor Cynthia McFadden.
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