Many people drink caffeinated beverages to start the day or get a quick boost of energy if they are feeling fatigued. Everyone has different physical responses to the effects of caffeine and some people with a higher sensitivity may experience symptoms as severe as hyperventilation if they consume large amounts of caffeine or develop an addiction and experience associated withdrawal.
Effects of Caffeine
Caffeine is a stimulant and has a direct effect on your central nervous system. When you drink caffeinated coffee, tea, or energy drinks, you will typically feel more alert, energized, and experience an increased sense of focus. Sensitivities to caffeine or excessive consumption of caffeinated beverages can cause marked anxiety, restlessness, insomnia, nausea, and abnormal heart rhythms. Although it is not a primary symptom of caffeine use, in some cases, episodes of anxiety or increased heart rate could result in hyperventilation.
Caffeine and Anxiety
Certain individuals have a predisposition for anxiety based on their physical and psychological responses to stress. When caffeine stimulates the nervous system, it also acts on areas of the brain that are responsible for regulating attention and mood, and if the brain is overstimulated, extreme anxiety or panic attacks may result. Anxiety and panic attacks can result in restlessness, rapid heart rate, vertigo and hyperventilation. Many patients who are treated for anxiety disorders are cautioned to carefully limit caffeine consumption to avoid triggering intense anxiety or panic attacks.
Caffeine Addiction and Withdrawal
Caffeine is also an addictive substance, and if you drink caffeinated beverages on a regular basis, you may develop a dependency on caffeine. If you tend to consume more than 300 milligrams of caffeine -- the equivalent of 3 to 4 cups of coffee -- per day, you're at a greater risk of experiencing withdrawal if you suddenly cut back on or stop your caffeine intake. Caffeine withdrawal is also associated with symptoms such as restlessness and anxiety that could trigger an episode of hyperventilation.
Managing Caffeine Intake
Total daily caffeine consumption should be limited to no more than 300 milligrams per day. Consuming 500 to 600 milligrams of caffeine per day is considered heavy use and is likely to result in physical side effects, addiction, and eventual withdrawal if you cut back. You can control caffeine consumption by alternating caffeinated drinks with beverages like decaf coffee or herbal teas. If you are consuming high amounts of caffeine and you want to cut back without serious side effects, you should taper slowly over the course of several weeks.
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