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Caffeine-induced anxiety disorder is a subclass of the DSM-5 diagnosis of substance/medication-induced anxiety disorder. [1] Consumption of caffeine has long been linked to anxiety. [2] The effects of caffeine and the symptoms of anxiety both increase activity within the sympathetic nervous system.
“For people with a history of anxiety, depression, or mood disorders,” Feller says, “high caffeine intake can exacerbate feelings of instability.” You can even have caffeine withdrawal ...
Caffeine dependence can cause a host of physiological effects if caffeine consumption is not maintained. Commonly known caffeine withdrawal symptoms include headaches, fatigue, loss of focus, lack of motivation, mood swings, nausea, insomnia, dizziness, cardiac issues, hypertension, anxiety, and backache and joint pain; these can range in severity from mild to severe. [18]
Kearney says that high coffee consumption could lead to anxiety, digestive issues, muscle tremors, headaches, caffeine dependency, and interference with calcium absorption (which can affect bone ...
However, caffeine, particularly when it’s overused, can cause unwanted side effects like “insomnia, digestive problems, increased blood pressure and faster heart rates,” Vuppuluri says.
According to a 2011 literature review, caffeine use may induce anxiety and panic disorders in people with Parkinson's disease. [99] At high doses, typically greater than 300 mg, caffeine can both cause and worsen anxiety. [100] For some people, discontinuing caffeine use can significantly reduce anxiety. [101]
In chronic psychiatric patients, caffeine, the major active ingredient in coffee, is associated with anxiety. [31] [32] At high doses, typically greater than 300 mg, caffeine can both cause and worsen anxiety. [33] For some people, discontinuing caffeine use can significantly reduce anxiety. [34]
A growing chorus of concerned former caffeine “addicts” are trying to wake people up to the substance’s negative effects.