Lack of sleep can be harmful as it can make people feel less full after eating and metabolise the fat in food differently, says a study, adding to the mounting evidence about how harmful lack of sleep can be.
The study, published in the journal of Lipid Research, by Pennsylvania State University found that sleep disruption has been known to have harmful effects on metabolism.
Orfeu Buxton, a professor at Penn State, added that long-term sleep restriction puts people at a higher risk of obesity and diabetes.
Kelly Ness, now a postdoctoral fellow at the University of Washington, ran the study when she was a graduate student in Buxton's lab.
She and other researchers not only collected data but also spent time, "interacting with the subjects, playing games with them, talking with them - helping to keep them awake and engaged and positive."