Jun 05 2011
Five or more cups of coffee per day may cause an individual to hallucinate.
A study out of Australia’s La Trobe University looked at the roles that caffeine and stress play on instances of auditory hallucinations. Participants who were under stress and under the effect of high levels of caffeine listened to white noise and were asked to indicate when they heard Bing Crosby sing “White Christmas.” Those reporting highest stress and caffeine levels were much more likely to report hearing the song (which was never played) than were those with low stress and caffeine levels.
‘It is apparent that the health risks of excessive caffeine use must be addressed and caution should be raised with regards to the exacerbating use of this stimulant,’ says Professor Simon Crowe.