How much leisure does a student need?

We all know the old adage about how only working without any recreation makes for a dull individual. Parents and teachers alike harp on this, and tell students, especially those taking the board exams for Classes X and XII, to take short breaks from their studies to refresh their minds and rejuvenate their bodies, so as to continue their studies with renewed vigour. However, what should be the approach during the actual exams? Should students take breaks or shouldn’t they take breaks at all? If they do take breaks, for how long? What kind of recreation is advised?
STUDENTS: What is your approach? How does either approach influence your studies?
TEACHERS: What advice do you give your students? How does either approach influence their studies? Does it work differently for different students?
PARENTS: What advice do you give your children? How does either approach influence their studies? Does it work differently for different students?
Do write back with your opinions and views here. We will be glad to hear from you all on this topic.