You may want to cut out early from work tonight.

Researchers who followed 2,123 British workers for six years found that those who put in long hours on the job were more likely to develop signs of depression. Those workers who put in an average of 11 hours were more than twice as likely to be depressed as those who put in seven or eight hours.

Health.com explains further:

“Overworked junior and mid-level employees appear to be more prone to depression than people higher up the food chain, the study suggests.”

Peer-reviewed journal PlosOne originally published the study and has the full results.

It should be noted that it doesn’t look like the study took into consideration the depression levels of those employees who were fired for always leaving early.