[1913 Webster] I knew by these harbingers who were coming. --Landor. [1913 Webster] The Collaborative International Dictionary of English v.0.48:Harbinger \Harbin*ger\, v. t. [imp. & p. p. Harbingered (h[add]rb[i^]n*j[~e]rd); p. pr.
However, certain factors might put teens at risk of developing eating disorders, including: Societal pressure. Popular culture tends to place a premium on being thin. Even with a normal body weight, teens can easily develop the perception that they're fat. This can trigger an obsession with losing weight and dieting. Favorite activities. Participation in activities that value leanness â such as modeling and elite athletics â can increase the risk of teen eating disorders.
But that's not the only big difference in teenagers' brains. Nature made the brains of children and adolescents excitable. Their brain chemistry is tuned to be responsive to everything in their environment. After all, that's what makes kids learn so easily. But this can work in ways that are not so good. Take alcohol, for example.