Schizophrenia is a mental disorder marked by the loss of contact with reality. When a person's thinking, feeling, and behavior is so far from normal as to interfere with his or her ability to function in everyday life, and delusions, hallucinations, irregular thinking or emotions are produced, then he or she has a mental illness called schizophrenia. About one hundred years ago schizophrenia was first recognized as a mental disorder and researchers have been searching for a cure since. The exact cause of schizophrenia is still unknown and scientists are certain that schizophrenia has more than one cause. Scientists have developed dozens of theories to explain what causes this disease, but researchers are focusing on four leading theories. They are the Genetic Theory, the Environmental Theory, the Biochemical Theory, and the Bio-Psycho-Social Theory.
The Genetic Theory argues that schizophrenia is caused by traits in a person's genetic makeup. As we al...