Having a lie-in at the weekend when you are used to getting up early all week can affect your mood and increase the risk of depression, according to a new study.
Experts from Michigan Medicine, the University of Michigan’s academic medical centre used sleep and mood data from 2,1000 early career doctors taken over a year.
An irregular sleep schedule can increase the risk of depression just as much as getting fewer hours of sleep overall or staying up late regularly, they found.