A simple tweak to the sleeping patterns of ‘night owls’ – people with extreme late sleeping and waking habits – may improve performance in the mornings, and reduce depression and stress, a study has found.

The research, published in the journal Sleep Medicine, showed that, over a three-week period, it was possible to shift the circadian rhythm of ‘night owls’ using non-pharmacological and practical interventions.

The researchers from University of Birmingham and University of Surrey in the UK, and Monash University in Australia, showed that participants were able to bring forward their sleep/wake timings by two hours, while having no negative effect on sleep duration.

In addition, participants reported a decrease in feelings of depre...
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