ED ( eating disorders ) as defined by the dictionary ; An eating disorder is to eat, or avoid eating, in a manner which negatively affects both one's physical and mental health. Eating disorders are all encompassing. They affect every part of the person's life. According to the authors of Surviving an Eating Disorder, "feelings about work, school, relationships, day-to-day activities and one's experience of emotional well being are determined by what has or has not been eaten or by a number on a scale. But to us: those of us who couldn't imagine living life in any other way an ED is perfection.