It turns out that caffeine addiction could lead to a temporary mental disorder, according to the new edition of the mental health manual, the DSM-5, which lists caffeine intoxication among the many disorders known to psychiatry.
Restlessness, nervousness, excitement, red face, gastrointestinal upset, muscle twitching, rambling speech, sleeplessness, rapid and irregular heartbeat and other symptoms may be familiar to many of us, but they are telltale signs of caffeine intoxication.
A coffee drinker who experiences five or more of these symptoms during or shortly after consuming caffeine could be diagnosed with caffeine intoxication. The intoxication must also meet a standard DSM test: It must cause distress or impair the drinker's ability to function.
Withdrawal symptoms include headache, fatigue, difficulty concentrating, depressed mood and other issues.
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May 08, 2026 15:50 ET Manufacturing and services sector survey results and labor market data from main economies were the highlight on the economics news front this week. Factory orders and jobs report dominated the news flow in the U.S. Similarly, industrial production data from German garnered attention in Europe. In Asia, purchasing managers’ survey results from China and the central bank decision from Australia were in focus.