USA TODAY International Edition

Regularly staying up late may be deadly, study says

- Brett Molina

Here’s one big reason why being a morning person matters: Your risk of death may be lower.

A joint study by Northweste­rn University and the University of Surrey in the United Kingdom found that “night owls” — people who prefer to stay up later — had a higher mortality rate than people who go to sleep early.

Researcher­s focused on more than 433,000 people between ages 38 and 73. They asked participan­ts whether they were a morning or evening person and to what degree (moderate or definite). The study then tracked deaths up to 61⁄2 years later.

The research found night owls had a 10% greater risk of dying than morning people. It also found evening types had higher risks for conditions such as dia- betes and psychologi­cal disorders.

“Night owls trying to live in a morning-lark world may have health consequenc­es for their bodies,” said co-lead author Kristen Knutson, associate professor of neurology at Northweste­rn University Feinberg School of Medicine, in a statement published Thursday.

The inclinatio­n to live as a night owl or morning person might not be by choice. A 2017 study claims those tendencies could be linked to your genes.

Knutson said researcher­s want to test whether night owls can convert to morning people and whether overall health improves.

“If we can recognize these chronotype­s are, in part, geneticall­y determined and not just a character flaw, jobs and work hours could have more flexibilit­y for owls,” Knutson said

Results were published in the journal Chronobiol­ogy Internatio­nal.

 ??  ?? A recent study shows morning people outlived “night owls.” GETTY IMAGES
A recent study shows morning people outlived “night owls.” GETTY IMAGES

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