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A standard cup of coffee can contain anywhere from 95 to 200 mg of caffeine. That's a big range. The FDA cites 400 mg of caffeine per day "as an amount not generally associated with dangerous ...
[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 ] Caffeine-induced anxiety disorder is a subclass of substance- or medication-induced anxiety disorder . [ 35 ]
In adults and children age 2 and older, use it only on the neck and chest to ease coughing during a cold, per the Mayo Clinic. Vicks VapoRub is made of ingredients such as camphor, eucalyptus oil ...
While anxiety can take many forms, one of the more troubling symptoms is chest tightness, which can also be a sign of something more immediately life-threatening, like a heart attack.
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]
The caffeine content of cola drinks and most energy drinks can be difficult to determine, because in many cases the labels do not indicate the dose per serving. Caffeine doses in these beverages range from 20 to 30 mg in some soft drinks, up to 350 mg or more in some energy drinks.
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]
While seasonal allergies often begin in the sinuses, you may also experience symptoms in your head (headache and pressure), throat and chest (hoarseness and cough) and yes, even in your stomach ...