While working as a medium over the past 35 years, I have met many people who thought they were mentally ill because they were hearing voices. There are people who will live their lives taking medication they don't need, because the medical profession don't believe people's brain can be affected by discarnate spirit. There are other causes for hearing voices and having mood swings etc. Like the side affects when taking medication and certain illness's. When these have been eliminated there can be only one cause. Scientists study the brain looking for abnormalities to explain mental illness,...