If you've got the chance to sleep in on a weekend morning, take it. Scientists suggest in a new study that grabbing an extra hour or two in one night can help restore your performance after a week of less-than-awesome slumber.
Photo by B Rosen.
In the journal Sleep, a recent study was analysed in which 159 adults, at an average age of 30, were given two 10-hour nights, then most were given just four hours of sleep across five consecutive nights. After that, the amount of sleep allowed was randomised. Those who received the most sleep after that pretty awful-sounding week fared the best:
Dr David Dinges, chief of the Division of Sleep and Chronobiology at the University of Pennsylvania, who led the study, said: "The additional hour or two of sleep in the morning after a period of chronic partial sleep loss has genuine benefits for continued recovery of behavioural alertness.
"The bottom line is that adequate recovery is important for coping with the effects of chronic sleep restriction on the brain."
Does this go directly against what your friends and other studies have suggested? Kind of. Doesn't it feel great to wake up at an unproductive hour on a weekend? Yes. Your mileage, then, will vary.
Have you found sleeping in on weekends helps you recover, or does it merely set a bad precedent?
Lying in at the weekend boosts your brain power, study shows [Telegraph via @rosa]