10 disadvantages of caffeine
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1. Insomnia The very first disadvantage of coffee is insomnia, the most common thing observed these days. On days preceding an exam with a massive syllabus but little to no preparation time, coffee becomes our beverage of choice. This disadvantage of coffee is for all the students who gulp down multiple cups of it in an attempt to cram the whole syllabus in one night. Ever wondered what the reason behind this behavior was? Introducing adenosine - the sleep-promoting chemical. The longer you stay awake, the more the amount of adenosine builds up in your brain. Caffeine, one of the main constituents of coffee, can bind to the same receptors as adenosine. It blocks the receptors preventing adenosine from binding to them to do its job of inducing sleep. 2. Anxiety Next on the list of disadvantages of coffee, is anxiety. A constant feeling of worry, agitation, or feeling tense, can be classified as anxiety. However, feeling nervous about certain things is perfec...