Home » Health » Mental Health » Excessive caffeine ingestion leads to symptoms that overlap with those of many psychiatric disorders. In psychiatric in-patients, caffeine has been found to increase anxiety, hostility and psychotic symptoms.
Giant Mug of Coffee

Excessive caffeine ingestion leads to symptoms that overlap with those of many psychiatric disorders. In psychiatric in-patients, caffeine has been found to increase anxiety, hostility and psychotic symptoms.

Neuropsychiatric effects of caffeine

‘… coffee sets the blood in motion and stimulates the muscles; it accelerates the digestive processes, chases away sleep, and gives us the capacity to engage a little longer in the exercise of our intellects.’

Traité des Excitants Modernes(1838), (translated from the French by Robert Onopa)

Caffeine is the most widely used psychoactive drug in the world. It is found in more than 60 known species of plants, and dietary sources include coffee, tea, cocoa beverages, chocolate and soft drinks. Coffee was consumed in Arabia in the 13th century and was introduced into Europe in the early 17th century. Tea was probably drunk in China before the birth of Christ and was brought to Europe in the 16th century. Most dietary caffeine is still co… Continue Reading (5 minute read)

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