"Any test that requires 7 hours revision a day isn't an exam, it's a memory game ... students who boasted of passing their exams with minimal revision while others were only happy to criticise ...

So how do they manage exam stress? And does having a teacher as a parent help? "I was very overwhelmed and I didn't want to do it," says Emma, thinking back to her A-level revision last year.

ready for exam day. But what if the secret to effective revision is not just more hours spent studying but understanding how your brain learns and recalls information? Recent neuroscience research ...