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People with low caffeine intake have a decreased performance later in the day, compared to moderate and a high-level caffeine intake. Thus the effect of caffeine on short-term memory can differ due to many other factors and thus cannot be instantly generalized. [6]
The study, which enlisted 23 men with a "moderate habitual caffeine intake" (under 300 mg) between the ages of 18 and 40, discovered that while a 100 mg dose of caffeine can be consumed up to four ...
However, the MRI scans showed that drinking coffee increased activity in parts of the brain involved in short-term memory, attention and focus, whereas ingesting caffeine on its own did not.
Depression can also cause memory issues, according to the National Institute on Aging (NIA). Medications. Certain prescription and over-the-counter drugs can cause sleepiness or confusion.
[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 ]
So, while caffeine has the potential to increase performance, it comes at a cost of sleep deprivation which in its own way can counter the main point of caffeine. Sleep deprivation alone can cause a variety of problems associated with cognitive control and functions. This can include reduced alertness, attention, vigilance, speed of motor ...
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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]