About half of U.S. adults will develop a mental illness sometime in their lives.

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Research shows that one of the highest risk times for violence in people who develop a psychotic illness is their first episode -- the period right before they establish any record with the formal mental health care system.

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"Less than 1% develop a serious neurologic illness such as encephalitis or meningitis (inflammation of the brain or surrounding tissues), " it said.

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"Less than 1% develop a serious neurologic illness such as encephalitis or meningitis (inflammation of the brain or surrounding tissues), " the CDC said.

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It is estimated that it takes just two years for women to develop a drink-related illness, compared with 10 years for men.

BBC: News | Health | Women hit the bottle

Dr Frisoni speculates that the illness is causing people to develop a new attitude towards novel experiences.

ECONOMIST: A tragic muse

What that means is that if you have a chronic illness, or you develop one, you're could be uninsurable.

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Families that provide love, support and guidance to their children are a powerful bulwark against psychiatric illness and promote good outcomes when illnesses like bipolar disorder do develop.

CNN: Can a person 'discourage' bipolar disorder?

Their conclusions are that while depression is not necessarily a cause of the illness, there is a strong suggestion that it may help doctors predict which elderly people will develop heart disease.

BBC: Depression may boost heart risk