There’s new reason to be annoyed by that pal of yours who’s always beaming first thing in the morning. You know, the one who has already worked out, read the paper, managed to not only wash but also blow-dry her hair and put together a super-cute ensemble before you’ve even managed to rub the sleep out of your barely open eyes. A study out of the University of Toronto finds morning people are happier than night owls—and not just in the early hours but all day long, LiveScience reports.

Yet there’s good news for folks who like to stay up late: Most of us switch from night owls in our teens to morning people by the age of 60, according to the website.

“We found that older adults reported greater positive emotion than younger adults, and older adults were more likely to be morning-type people than younger adults,” Renee Biss, a researcher on the study, tells LiveScience. “The ‘morningness’ was associated with greater happiness emotions in both age groups.”

See, we’re not just falling asleep on the couch before 9:30 at night because we’re old. We’re just trying to be morning people!

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