e answers using only one recommended ink pen.
Heavy Meals Just Before Exams Decreases Brain Power: You should not eat any heavy meal for 3 hours before going to an exam. This is because digestion of food requires energy. When you eat food, blood supply and flow of oxygen increases to stomach area. The total blood in the body is constant, so the blood that’s supplied to the brain decreases. This is why you feel lazy or sleepy after eating food. This also means that your IQ or brain power decreases for a few hours (2 or 3 hours) after eating.