Answer:
Mental illnesses may be caused by a reaction to environmental stresses, genetic factors, biochemical imbalances, or a combination of these. With proper care and treatment many individuals learn to cope or recover from a mental illness or emotional disorder.
Studies show psychopaths usually speak in a controlled manner. They don't emphasize emotional words like other people do. Their tone remains fairly neutral throughout the conversation. Researchers suspect they craft a calm demeanor intentionally because it helps them gain more control in their personal interactions.
