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Overuse Of Caffeine Linked To Hallucinations

June 7, 2011

A team of researchers from the School of Psychological Sciences of La Trobe University in Melbourne recently found that five cups of coffee a day was enough to trigger imaginary voices and sounds, The Daily Mail reports.

Drinking five cups a day could be enough to make your ears play tricks on you, according to researchers, who described caffeine as “Ëœthe most commonly used psychoactive drug’.

Ninety-two volunteers in the study who had consumed high levels of caffeine thought they were listening to Bing Crosby singing White Christmas even though the song was not being played.

The volunteers were asked to listen to a constant fuzzy sound known as white noise. Professor Simon Crowe, said, “We also told them that within the white noise there may be parts of the song White Christmas and if you hear it, press a button.”

“We didn’t include White Christmas in the white noise but found that more people who were very stressed and  had high levels of caffeine thought they heard the song. The combination of caffeine and stress affect the likelihood of an individual experiencing a psychosis-like symptom.’”

The researchers from the university found that five cups of coffee a day was enough to trigger this. Crowe added, “Caution needs to be exercised with the use of this overtly safe drug.”

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