Sleep deprivation can trigger powerful changes in how you eat that are akin to the 'marijuana munchies', a study suggests.
Disturbed sleep patterns can impair memory, shrink the brain and raise stress levels, academics have found.
Increasing numbers of viewers are staying up late because they lack the willpower to press the off button.
A study has found that morning people tend to be thinner than night owls.
Chronic insomnia not only hampers one's ability to function effectively during the day, but can profoundly affect health.
A research suggest people who have difficulty remembering names should try sleeping on it.
New devices are being built with 'brighter' screens, which have an impact on the body's ability to produce sleep-inducing hormones.
Having a lie-in at the weekend could raise the risk of diabetes and heart disease, say researchers.