Bank sleep to fight tiredness

As anyone who has unwittingly drifted off at their desk will know-tiredness can really creep up on you when you least need it. But a new study is offering some good news： it claims to prove that we can bank sleep-and store it up in advance of a tiring event. Researchers in the US invited a group of volunteers to adjust their sleep patterns so the effect could be monitored. For a week, one half of the group was allowed extra sleep, while the others were told to keep their sleeping patterns the same. Then, the following week, they were all sleep-deprived.
"After this week of either extended or habitual sleep per night, all the volunteers came to the lab and they were given three hours of sleep, per night, for a week," explained Tracy Rupp from the Walter Reed Army Institute of Research. They were then given tasks of varying complication, and tests showed that those who had banked the sleep were "more resilient during the sleep restriction". "They showed less performance deterioration with regards to reaction time and alertness than the group that had been given the habitual prior sleep," said Ms Rupp. Bank sleep to fight our tiredness it seems a pretty theory. I think it to difficult for person who has habit of insomnia. Bank sleep likes taking a nap during the noon to get good mind. Stop to sleep or take a rest, when you feel tired it is necessary.