Beginning of Essay
The prevalence of psychiatric disorders in the human population today is alarmingly high. For instance, major depression afflicts ten to twenty-five percent of women and five to twelve percent of men in their lifetime. Along with that, twenty-five percent of the ....

Middle of Essay
.... the beginning of civilization, people have attempted to understand the causes of human emotional behavior. Most primitive societies believed that mental illnesses were caused by a demon who took possession of the victim’s body. The early civilizations would treat the mental illnesses by trying to make the body so uncomfortable that the demon would want to leave. But, by the late eighteenth century, most people were convinced that mental disturbances were not caused by supernatural powers. Scientists, however, were still unsure whether such illnesses stemmed from physical problems or psychological abnormalities. The nineteenth century saw an e ....