Take that power nap

KEY
Question 1
a) True. Medical researchers have shown that snoozing for just one hour during the day is enough to increase the brain's ability to learn new facts in the hours that follow.
b) True. .. the British habit of trying to stay awake from morning until night …
c) True. Researchers split 39 healthy students into two groups and asked them to carry out a learning task ….
d) False. .. students who have all-night revision sessions in the run up to exams, reduce the brain's ability to cram in new facts by a staggering 40 per cent.

Question 2
a) Both groups had to try and remember which names and faces went together. Then, later, after one of the groups had had a short sleep while the other group had not, they were asked to learn other things.
b) Scientists believe that when we sleep, our brain is able to empty the area of the brain used for short-term memory and that this then means that it is free to learn new information.

Question 3
a) boost
b) round
c) staggering

Question 4
a) 39 healthy students were split into two groups and were asked to carry out a learning task intended to tax the region of the brain that helps store facts..
b) People who remained awake throughout the day performed much worse than those who had a siesta.
c) If students have all night revision sessions in the run up to exams, the brain’s ability to cram in new facts is reduced by a staggering 40 percent.