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What time should you stop drinking caffeine during the day? Feller recommends that people keeping a 9 a.m. to 5 p.m. workday schedule limit their caffeine intake to the hours before noon.
The FDA cites 400 mg of caffeine per day "as an amount not generally associated with dangerous, negative effects." But caffeine's impact can vary from person to person, all depending on how ...
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.
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]
To decrease daily caffeine consumption, Richard suggested: start to slowly decrease daily intake while monitoring withdrawal symptoms such as headaches, irritation, a decrease in energy, and brain fog
Caffeine-induced anxiety disorder is a subclass of substance- or medication-induced anxiety disorder. [35] Populations that may be most impacted by caffeine consumption are adolescents and people with anxiety disorders. [36] Preliminary research indicated the possibility of a beneficial relationship between coffee intake and reduced depression.
When consumed in moderation, caffeine can have many beneficial effects. However, over the course of several years, chronic caffeine consumption can produce various long-term health deficits in individuals. Among these, rodent studies have suggested caffeine intake may permanently alter the brain's excitability. [23]
In fact, the FDA estimates toxic effects, like seizures, can be observed with rapid consumption of around 1,200 milligrams of caffeine, or 0.15 tablespoons of pure caffeine.