Confusion may be associated with serious infections, some chronic medical conditions, head injury, brain or spinal cord tumor, delirium, stroke, or dementia. It can be caused by alcohol or drug intoxication, sleep disorders, chemical or electrolyte imbalances, vitamin deficiencies, or medications.

Where did confusion come from?

The word confusion derives from the Latin word, confundo, which means "confuse, mix, blend, pour together, disorder, embroil."

Does confused come from Confucius?

On that date he expressed it as “One look is worth a thousand words,” but on March 10, 1922, he altered it to “One picture is worth a thousand words” and called it a Chinese proverb, so that people would take it seriously. ... Attorney Louis A.