2. Write an exam
If you are going to write an exam, you want optimum brain functioning. Your brain takes its energy from food, just like the rest of your body does. If your brain cells are not correctly nourished, your neural function and brain chemistry can be negatively impacted. Your brain looks after all your bodily functions including concentration, memory, sleep patterns, mood and your motor skills. When you write an exam you need concentration and memory.
When you go without food for extended periods, your body quickly realizes the food deficit and responds accordingly to create hunger. One of the main areas of your body involved in and affected by this response is your brain. Although a bit of hunger can help you sharpen your focus too much hunger can be a distraction. Hunger is tied directly to low blood sugar that quickly leads to fatigue and low energy levels. These all wreak havoc on your ability to focus.
If you are like some students who are nervous before exams and you don’t eat anything except for coffee you are likely to end up with nervous nausea. During an exam, you need to be able to focus on recalling information and be able to focus intensely on the task at hand. Although fasting does produce a hormone reaction that causes intense focus, hunger and nausea could be distracting. A large heavy difficult to digest meal is not the right way to go either as it will overload your body with digestion issues.
The best thing to do before an exam is to eat a light well balanced and easily digestible meal, this could also play a role in keeping you calm, maintain your stamina as well as avoiding a perceivable distracting hunger.