Three cups of brewed coffee a day 'triples risk of hallucinations'

"Researchers found that "high caffeine users", those who had more than the equivalent of seven cups of instant coffee a day, were three times more likely to have had hallucinations than those who had less than the equivalent of one cup.

Those who have three cups of brewed coffee a day could be at the same risk, they warn, because of the drink's higher caffeine content. "

http://www.telegraph.co.uk/scienceandtechnology/science/sciencenews/4227673/Three-cups-of-brewed-coffee-a-day-triples-risk-of-hallucinations.html