Turns out if you're keen on working hard, keeping your hair may not be optional.
Researchers have found that people who work more than 52 hours each week are twice as likely to end up bald.
While a good chunk of us are used to a 40 hour work week, in other countries much longer hours are pretty common.
A study has now been conducted linking longer hours and hair loss, taking results from more than 13,000 men.
The science says stress triggers a hormone level change in certain areas of the body, including the scalp, where growth is subsequently inhibited.
Researchers from Sungkyunkwan University School of Medicine in South Korea studied the men - aged between 20 and 59 - from 2013 to 2017.
The men were then split into groups based on their work hours.
Other factors including income and smoking were also considered in the study.
They eventually found that working longer hours was in fact linked to baldness.
Lead author Kyung-Hun Son said: 'The results of this study demonstrate that long working hours is significantly associated with the increased development of alopecia in male workers.
'Limitation of working hours in order to prevent alopecia development may be more necessary from younger workers, such as those in the 20s and 30s, at which hair loss symptoms start to appear.'
'Preventive interventions to promote appropriate and reasonable working hours are required in our society.'
So if you're keen on keeping your hair - let the boss know you need a day off!