Short sleepers cruise by on four to six hours a night and don’t seem to suffer ill effects. Turns out they’re genetically ...

Always tired, no matter how much you sleep? Discover the hidden causes of chronic fatigue — from sleep apnea to vitamin ...

Just 48 hours without sleep is considered extreme sleep deprivation, but you'll probably get weird before then. After 18 hours with no sleep, you might feel a little drunk. Staying awake that long ...

One 2015 study found that people with chronic poor sleep quality had not just more signs of ageing, but also diminished skin barrier function and lower satisfaction with appearance. Over time ...

“Just raw-dogged it, 15 hour flight to Melbourne ... posting that he had got through a seven-hour flight with “no phone, no sleep, no water, no food” and had found it "easy".