The Daily Iowan reports counterproductive behavior at work may lead to disturbances in sleep, according to a new study from the Univerity of Iowa Tippie College of Business.

“We are looking at the consequences of doing something bad at work and how doing something bad influences sleep quality,” researcher Zhenyu Yuan said. Counterproductive behavior may include any action that could harm the well-being of the organization or its members, he said. For instance, taking a break when one is not supposed to or doing something that could come in the way of others.

The basic findings suggested that after people did something bad at work, they would go home and keep revisiting their work mentally, leading to disturbed sleep, Yuan said. “We also have evidence that shows this study is not culture specific and is not only applicable to [populations] in U.S. and China,” he said.