Insomnia
A recent onset of insomnia is usually related to a current problem such as health concerns, marital troubles, dilemmas at work, etc., and as such usually last less than three weeks. If no such mental/emotional reason can be uncovered, then physical causes should be investigated. It is important to "rule out" obvious causes of insomnia such as anemia, hypertension (high blood pressure) or prescription drugs. ...  

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