Many cultures view mental illness as religious punishment or demonic possession. In ancient Egyptian, Indian, Greek, and Roman writings, mental illness was classified as a religious or personal problem. In the 5th century BC. C. Hippocrates is a pioneer in the treatment of mentally ill patients based on religion or boring beliefs; instead, it focuses on changing the environment or the occupation of mentally ill patients or administering certain drugs, such as drugs. In the Middle Ages, psychopaths believed that religion used or needed religion. Negative attitudes towards mental illness continued in the United States until the 18th century, leading to the stigma of mental illness and the unrestrained (often debilitating) confinement of the mentally ill.