A new study found that night owls—people who like to stay up late—are more likely to die early compared to morning larks, who rise earlier.

The new report, published in the journal Chronobiology International, analyzed a study of about half a million people from ages 30 to 73 and followed what happened to them over 6.5 years. They found that the people who identified themselves as “definite evening types” had a 10% higher risk of dying over the study period than people who said they were “definite morning types” at the start of the study.

The researchers, from University of Surrey in England and Northwestern University in Chicago, also found that night owls were more likely to have health problems like diabetes, neurological problems and respiratory disorders. This isn’t the first study to have found an association between late bedtimes and poorer health; other studies have linked being a night owl to a greater risk of depression, drug use and negative lifestyle behaviors like eating an unhealthy, fatty diet.

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