It may not make you popular with your boss but a snooze in the middle of the day dramatically boosts your brain power.
Medical researchers have shown that the power naps favoured by Winston Churchill, Albert Einstein and Margaret Thatcher not only refresh the mind, they also make people smarter.
They found snoozing for just one hour in the day is enough to increase the brain's ability to learn new facts in the hours that follow. Read more
A midday nap dramatically boosts your brain power, according to a California study.
