Your academic work actually benefits if you build in rest, exercise and relaxation. Your brain needs a good night’s sleep and this is particularly important before the day of your exam.  Exercise will help you relax, keep a good appetite and give you that vital “switch off” time from study.  Remember to build some leisure and relaxation into your study schedule.  This is time to spend with friends or family, go for a walk or watch a TV show.  Finally, don’t forget to eat!  Just as the brain needs sleep it also needs nourishment.