(CNN) — A new study suggests working long hours could be altering the structure of your brain. Two scientists in South Korea followed 110 healthcare workers classified as “overworked” and “non-overworked.” they then used a neuroimaging technique to analyze brain volume.

The overworked group, working 52 hours or more each week, had significant changes in brain regions associated with executive function and emotional regulation compared to the “non-overworked”. Researchers believe it suggest a biological basis for the cognitive and emotional challenges to people who are overworked.

See Full Page