Is it sensible to drink coffee while doing exams?
Doing exams is an energy – and attention demanding activity; coffee may help to sharpen your mind, assuming that you are a regular coffee drinker. Since, coffee is used as a mood optimiser, it may help to find the most appropriate state of mind to make a success of the exam. If you are not a regular coffee drinker, then coffee may not be your best choice. So, in that case, stick to the drink you are accustomed to.