Caffeine Intoxication

An over-stimulation of the central nervous system caused by high doses of caffeine. Caffeine, the most consumed psychoactive drug in the world, is highly addictive and can cause physical, mental and psychomotor impairments. Coffee is the most common source of a high intake of caffeine. Other sources are tea, energy drinks, soda, chocolate, analgesics and cold remedies. Caffeine is taken to improve mood, concentration, alertness and cognitive function. Symptoms of intoxication can include nervousness, irritability, increased urination, gastrointestinal disturbance, muscle twitching, rambling flow of thought and speech, hypertension, tachycardia or cardiac arrhythmia, periods of high energy and psychomotor agitation.