Mental illness which is sometimes called a psychiatric disorder is a condition in which one's thinking, mood and behavior are affecting ones individual’s life functions. It hinders the normalcy of the way of living for the individual having such disorder. Common ailments are depression, anxiety, eating disorders, addiction, and schizophrenia. Although some of the illnesses are treatable, other people have their whole lifetime to suffer this illness. One of the reasons why people turn mentally ill is because of his exposure to stimuli and the world around him. Others are purely genetic.