Numerous causes: There are numerous possible causes for changes in cognitive status. A few are: medications, head trauma, sleep apnea, lack of sleep, illegal drug use, stroke, alzheimer's disease, kidney disease, liver disease, brain tumor. The list goes on and on. If you think you are having a problem with cognitive function you need to speak to your doctor about this so that they can diagnose your situation.
Answered 2/1/2014
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