Facts about eating disorders. Possible signs, symptoms and top 5 reasons for teen eating disorders. Teen eating disorders can be physically and emotionally devastating. Symptoms such as extreme weightloss, changes in countenance and appearance, physical exhaustion, and/or anxiety and depression are dangerous for teens and frightening for parents. When it comes to teen eating disorders, professional support is needed. Facts about eating disorders. Possible signs, symptoms and top 5 reasons for teen eating disorders. Teen eating disorders can be physically and emotionally devastating. Symptoms such as extreme weightloss, changes in countenance and appearance, physical exhaustion, and/or anxiety and depression are dangerous for teens and frightening for parents. When it comes to teen eating disorders, professional support is needed.